<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Shetti, VN</style></author><author><style face="normal" font="default" size="100%">Srinivas, D</style></author><author><style face="normal" font="default" size="100%">Ratnasamy, P</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Ti-oxo radicals and product selectivity in olefin oxidations over titanosilicate molecular sieves</style></title><secondary-title><style face="normal" font="default" size="100%">Zeitschrift für Physikalische Chemie International Journal of Research in Physical Chemistry and Chemical Physics</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">cyclic voltammetry of titanosilicates</style></keyword><keyword><style  face="normal" font="default" size="100%">EPR-spin trap experiments</style></keyword><keyword><style  face="normal" font="default" size="100%">Molecular sieves</style></keyword><keyword><style  face="normal" font="default" size="100%">oxidations</style></keyword><keyword><style  face="normal" font="default" size="100%">product selectivity</style></keyword><keyword><style  face="normal" font="default" size="100%">reactive oxygen species</style></keyword><keyword><style  face="normal" font="default" size="100%">titaniunz-oxo radicals</style></keyword><keyword><style  face="normal" font="default" size="100%">Titanosilicates</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2005</style></year><pub-dates><date><style  face="normal" font="default" size="100%">JUL</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">7</style></number><publisher><style face="normal" font="default" size="100%">OLDENBOURG VERLAG</style></publisher><pub-location><style face="normal" font="default" size="100%">LEKTORAT MINT, POSTFACH 80 13 60, D-81613 MUNICH, GERMANY</style></pub-location><volume><style face="normal" font="default" size="100%">219</style></volume><pages><style face="normal" font="default" size="100%">905-920</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The O-O bond of Ti-oxo species (Ti-peroxo, Ti-hydroperoxo or Ti-superoxo) generated on titanosilicate molecular sieves contacted with H2O2 cleaves either heterolytically or homolytically. While the former type of O-O cleavage (generating non-radical reactive oxygen intermediates) leads to selective epoxide products, the latter (generating reactive oxygen radical intermediates, O-2(-center dot) and HOOcenter dot) results in non-sclective, allylic oxidation products in cyclohexene oxidation. These radicals were detected using EPR spin trapping techniques 5,5-dimethyl-1-pyrroline-N-oxide (DMPO) was used as the spin trap. Radical quenchers like hydroquinone suppressed their concentration and enhanced epoxide selectivity.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">7</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Foreign&lt;/p&gt;</style></custom3><custom4><style face="normal" font="default" size="100%">1.133</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Kumar, Anuj</style></author><author><style face="normal" font="default" size="100%">Srinivas, Darbha</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Aminolysis of epoxides catalyzed by three-dimensional, mesoporous titanosilicates, Ti-SBA-12 and Ti-SBA-16</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Catalysis</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Aminolysis of epoxides</style></keyword><keyword><style  face="normal" font="default" size="100%">beta-Amino alcohol</style></keyword><keyword><style  face="normal" font="default" size="100%">Mesoporous titanosilicates</style></keyword><keyword><style  face="normal" font="default" size="100%">Molecular sieves</style></keyword><keyword><style  face="normal" font="default" size="100%">Ring opening of epoxides with amines</style></keyword><keyword><style  face="normal" font="default" size="100%">Ti-SBA-12</style></keyword><keyword><style  face="normal" font="default" size="100%">Ti-SBA-16</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">SEP</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">ACADEMIC PRESS INC ELSEVIER SCIENCE</style></publisher><pub-location><style face="normal" font="default" size="100%">525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA</style></pub-location><volume><style face="normal" font="default" size="100%">293</style></volume><pages><style face="normal" font="default" size="100%">126-140</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The application of three-dimensional, mesoporous titanosilicates (Ti-SBA-12 and Ti-SBA-16) as reusable, solid catalysts for the synthesis of a range of beta-amino alcohols in high yields and selectivity through ring-opening of epoxides with amines at ambient and solvent-free conditions is reported, for the first time. These mesoporous titanosilicates (Si/Ti = 20-80) were prepared by a direct hydrothermal synthesis route adjusting the concentration of HCl (0.05-2 M) used in the synthesis. Ti ions in these catalysts were mostly substituted for Si in the framework. Water adsorption and Si-29 magic-angle spin nuclear magnetic resonance spectroscopy revealed that Ti-SBA-16 is more hydrophobic than Ti-SBA-12. Mesoporosity, three-dimensional architecture, surface hydrophobicity and easy access of Lewis acidic, framework-substituted Ti sites are the factors responsible for the superior activity of Ti-SBA-16 compared to Ti-SBA-12 and the hitherto known solid catalysts for this reaction. (C) 2012 Elsevier Inc. All rights reserved.&lt;/p&gt;</style></abstract><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">5.787
</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Kumar, Anuj</style></author><author><style face="normal" font="default" size="100%">Srinivas, Darbha</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Selective oxidation of cyclic olefins over framework Ti-substituted, three-dimensional, mesoporous Ti-SBA-12 and Ti-SBA-16 molecular sieves</style></title><secondary-title><style face="normal" font="default" size="100%">Catalysis Today</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Epoxidation of cyclic olefins</style></keyword><keyword><style  face="normal" font="default" size="100%">mesoporous materials</style></keyword><keyword><style  face="normal" font="default" size="100%">Molecular sieves</style></keyword><keyword><style  face="normal" font="default" size="100%">Selective oxidation</style></keyword><keyword><style  face="normal" font="default" size="100%">Ti-SBA-12</style></keyword><keyword><style  face="normal" font="default" size="100%">Ti-SBA-16</style></keyword><keyword><style  face="normal" font="default" size="100%">Titanosilicates</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">DEC</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">1, SI</style></number><publisher><style face="normal" font="default" size="100%">ELSEVIER SCIENCE BV</style></publisher><pub-location><style face="normal" font="default" size="100%">PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS</style></pub-location><volume><style face="normal" font="default" size="100%">198</style></volume><pages><style face="normal" font="default" size="100%">59-68</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Framework Ti-substituted, three-dimensional, mesoporous titanosilicates, Ti-SBA-12 and Ti-SBA-16, were prepared by direct hydrothermal synthesis method. These catalysts showed catalytic activity higher than the hitherto known titanosilicates for the oxidation of cyclic olefins (cyclohexene and cyclooctene) with tert.-butyl hydroperoxide. An epoxide selectivity of 100% and olefin conversion greater than 92% were obtained. Cubic Ti-SBA-16 with interconnected cage-like mesopore structure was more active than hexagonal Ti-SBA-12. X-ray diffraction and diffuse reflectance UV-vis, Fourier transform infrared, Raman and electron paramagnetic resonance spectroscopies provided evidence for the substitution of Ti4+ (for Si4+) in the framework locations. The catalytic activity correlated with the concentration of framework-substituted, tetrahedral Ti4+ ions. Easy accessibility of the active sites and the three-dimensional mesoporous structure are the possible causes for the superior activity of these titanosilicate catalysts. (C) 2012 Elsevier B. V. All rights reserved.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">1</style></issue><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">2.98
</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Kumar, Anuj</style></author><author><style face="normal" font="default" size="100%">Srinivas, Darbha</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Hydroxylation of phenol with hydrogen peroxide catalyzed by Ti-SBA-12 and Ti-SBA-16</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Molecular Catalysis A-Chemical</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Catalytic liquid-phase hydroxylation of phenol</style></keyword><keyword><style  face="normal" font="default" size="100%">Molecular sieves</style></keyword><keyword><style  face="normal" font="default" size="100%">Ordered mesoporous titanosilicates</style></keyword><keyword><style  face="normal" font="default" size="100%">Oxidation with hydrogen peroxide</style></keyword><keyword><style  face="normal" font="default" size="100%">Ti-SBA-12</style></keyword><keyword><style  face="normal" font="default" size="100%">Ti-SBA-16</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2013</style></year><pub-dates><date><style  face="normal" font="default" size="100%">MAR</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">ELSEVIER SCIENCE BV</style></publisher><pub-location><style face="normal" font="default" size="100%">PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS</style></pub-location><volume><style face="normal" font="default" size="100%">368</style></volume><pages><style face="normal" font="default" size="100%">112-118</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;We report here, for the first time, the application of ordered, three-dimensional, mesoporous titanosilicates, Ti-SBA-12 and Ti-SBA-16, as reusable solid catalysts, for hydroxylation of phenol, an industrially important organic transformation. The reactions were conducted using 30% aqueous H2O2 as oxidant. The catalysts of this work are more efficient than the hitherto known mesoporous Ti-silicates. They are more para-product selective than TS-1 and other titanosilicates. Ti-SBA-12 exhibited higher activity and hydroquinone/catechol selectivity (by nearly two times) than Ti-SBA-16. H2O2 efficiency of similar to 90 mol% was obtained. Our study reveals that framework substituted Ti with pseudo-tetrahedral geometry, three-dimensional mesoporosity as well as surface structure are the unique features responsible for the high catalytic activity and selectivity of these titanosilicate catalysts. (C) 2012 Elsevier B.V. All rights reserved.&lt;/p&gt;</style></abstract><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">3.679
</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Garade, Ajit C.</style></author><author><style face="normal" font="default" size="100%">Malwadkar, A. V.</style></author><author><style face="normal" font="default" size="100%">Niphadkar, P. S.</style></author><author><style face="normal" font="default" size="100%">Jha, Ratnesh Kumar</style></author><author><style face="normal" font="default" size="100%">Joshi, P. N.</style></author><author><style face="normal" font="default" size="100%">Rode, C. V.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Effect of SnO2/Al2O3 ratio of Si-based MFI on its acidity and hydrophobicity: application in selective hydroxyalkylation of p-cresol</style></title><secondary-title><style face="normal" font="default" size="100%">Catalysis Communications</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Al-27 MAS NMR</style></keyword><keyword><style  face="normal" font="default" size="100%">Hydroxyalkylation</style></keyword><keyword><style  face="normal" font="default" size="100%">Molecular sieves</style></keyword><keyword><style  face="normal" font="default" size="100%">p-Cresol</style></keyword><keyword><style  face="normal" font="default" size="100%">Stannosilicate</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style  face="normal" font="default" size="100%">JAN</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">SI</style></number><publisher><style face="normal" font="default" size="100%">ELSEVIER SCIENCE BV</style></publisher><pub-location><style face="normal" font="default" size="100%">PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS</style></pub-location><volume><style face="normal" font="default" size="100%">44</style></volume><pages><style face="normal" font="default" size="100%">29-34</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Silica based MR type molecular sieves with various SnO2/Al2O3 ratios were synthesized from gels having molar compositions SiO2:xSnO(2):yAl(2)O(3):0.23(TPA)(2)O:35H(2)O where 0 &amp;lt;= x &amp;lt;= 0.02 and 0 &amp;lt;= y &amp;lt;= 0.01. Recyclable, Al-free Sn-MFI catalyst showed 31% conversion of formaldehyde with 100% selectivity to 2,2'-methylenebis(4-methylphenol) in hydroxyalkylation of p-cresol with formaldehyde on account of moderate acidity and higher hydrophobicity. (C) 2013 Elsevier B.A. All rights reserved.&lt;/p&gt;</style></abstract><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Foreign&lt;/p&gt;</style></custom3><custom4><style face="normal" font="default" size="100%">&lt;p&gt;3.389&lt;/p&gt;</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>47</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Nikalje, Anna Pratima G.</style></author><author><style face="normal" font="default" size="100%">Nimbalkar, Ms Urja D.</style></author><author><style face="normal" font="default" size="100%">Tupe, Santosh</style></author><author><style face="normal" font="default" size="100%">Vazquez, Julio A. Seijas</style></author><author><style face="normal" font="default" size="100%">Tato, Maria Pilar Vazquez</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">Seijas, JA</style></author><author><style face="normal" font="default" size="100%">Tato, MPV</style></author><author><style face="normal" font="default" size="100%">Lin, SK</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Molecular sieves and ultrasound-assisted synthesis of novel 1,3,4-oxadiazole-2-thiones derivatives as potential antifungal agents</style></title><secondary-title><style face="normal" font="default" size="100%">19TH INTERNATIONAL ELECTRONIC CONFERENCE ON SYNTHETIC ORGANIC CHEMISTRY</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">1</style></keyword><keyword><style  face="normal" font="default" size="100%">3</style></keyword><keyword><style  face="normal" font="default" size="100%">4-oxadiazoles</style></keyword><keyword><style  face="normal" font="default" size="100%">Antifungal activity</style></keyword><keyword><style  face="normal" font="default" size="100%">Mannich reaction</style></keyword><keyword><style  face="normal" font="default" size="100%">Molecular sieves</style></keyword><keyword><style  face="normal" font="default" size="100%">Ultrasound -assisted</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2015</style></year></dates><publisher><style face="normal" font="default" size="100%">MDPI; Univ Sanitiago Compostila; SES; Flow Chemistry; REGAL S; Molecules</style></publisher><pub-location><style face="normal" font="default" size="100%">ST. ALBAN-ANLAGE 66, BASEL, CH-4052, SWITZERLAND</style></pub-location><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;In the category of microorganism, fungi are considered as the special class of microbes responsible for opportunistic pathogenic infections in humans species. Due to the side effects of commercially available antifungal drugs and the emergence of new drug resistant fungal species in the past few years, has forced the researchers to search for novel and efficient antifungal drug molecules. The 1,3,4-oxadiazoles scaffold is associated with diverse biological activities. The multipurpose use of the Mannich bases in pharmaceutical chemistry promote us to prepare a new series of 5-(4-(benzyloxy)substituted phenyl)-3-((phenyl amino)methyl)-1,3,4oxadiazole-2(3H)-thione as antifungal agents. Herein, we report molecular sieves and ultrasound assisted synthesis of novel series of Mannich bases of the 5-substituted 1,3,4-oxadiazole-2-thiones by amino methylation with paraformaldehyde and substituted primary / secondary amines and their evaluation for antifungal activity. The structures of the newly synthesized compounds were determined by IR, NMR and Mass spectral study. The synthesized compounds exhibited interesting moderate to excellent antifungal activity against Candida albicans (NCIM 3557), Candida albicans(NCIM3471), Candida glabrata(NCIM3237), Cryptococcus neoformans (NCIM 3542), Cryptococcus neoformans(NCIM 3378), Aspergillus fumigates(NCIM 902), Aspergillus niger(NCIM 628) using Flucanazole as a standard reference drug. The synthesised compounds 6d, 6f,6g, 6h and 6j exhibited promising antifungal activity as antifungal agents.&lt;/p&gt;</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Nimbalkar, Urja D.</style></author><author><style face="normal" font="default" size="100%">Tupe, Santosh G.</style></author><author><style face="normal" font="default" size="100%">Seijas Vazquez, Julio A.</style></author><author><style face="normal" font="default" size="100%">Khan, Firoz A. Kalam</style></author><author><style face="normal" font="default" size="100%">Sangshetti, Jaiprakash N.</style></author><author><style face="normal" font="default" size="100%">Nikalje, Anna Pratima G.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Ultrasound- and molecular sieves-assisted synthesis, molecular docking and antifungal evaluation of 5-(4-(benzyloxy)-substituted phenyl)-3-((phenylamino)methyl)-1,3,4-oxadiazole-2(3H)-thiones</style></title><secondary-title><style face="normal" font="default" size="100%">Molecules</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">1</style></keyword><keyword><style  face="normal" font="default" size="100%">3</style></keyword><keyword><style  face="normal" font="default" size="100%">4-oxadiazoles</style></keyword><keyword><style  face="normal" font="default" size="100%">Antifungal activity</style></keyword><keyword><style  face="normal" font="default" size="100%">Mannich reaction</style></keyword><keyword><style  face="normal" font="default" size="100%">Molecular docking</style></keyword><keyword><style  face="normal" font="default" size="100%">Molecular sieves</style></keyword><keyword><style  face="normal" font="default" size="100%">Ultrasound</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style  face="normal" font="default" size="100%">MAY</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">5</style></number><publisher><style face="normal" font="default" size="100%">MDPI AG</style></publisher><pub-location><style face="normal" font="default" size="100%">ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND</style></pub-location><volume><style face="normal" font="default" size="100%">21</style></volume><pages><style face="normal" font="default" size="100%">484</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;A novel series of 5-(4-(benzyloxy) substituted phenyl)-3-((phenyl amino) methyl)-1,3,4-oxadiazole-2(3H)-thione Mannich bases 6a-o were synthesized in good yield from the key compound 5-(4-(benzyloxy) phenyl)-1,3,4-oxadiazole-2(3H)-thione by aminomethylation with paraformaldehyde and substituted amines using molecular sieves and sonication as green chemistry tools. The antifungal activity of the new products was evaluated against seven human pathogenic fungal strains, namely, Candida albicans ATCC 24433, Candida albicans ATCC 10231, Candida glabrata NCYC 388, Cryptococcus neoformans ATCC 34664, Cryptococcus neoformans PRL 518, Aspergillus fumigatus NCIM 902 and Aspergillus niger ATCC 10578. The synthesized compounds 6d, 6f, 6g, 6h and 6j exhibited promising antifungal activity against the tested fungal pathogens. In molecular docking studies, derivatives 6c, 6f and 6i showed good binding at the active site of C. albicans cytochrome P450 enzyme lanosterol 14 alpha-demethylase. The in vitro antifungal activity results and docking studies indicated that the synthesized compounds have potential antifungal activity and can be further optimized as privileged scaffolds to design and develop potent antifungal drugs.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">5</style></issue><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Foreign&lt;/p&gt;</style></custom3><custom4><style face="normal" font="default" size="100%">2.465</style></custom4></record></records></xml>