<?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%">Borikar, Sanjay P.</style></author><author><style face="normal" font="default" size="100%">Daniel, Thomas</style></author><author><style face="normal" font="default" size="100%">Paul, Vincent</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Efficient, rapid, and regioselective bromination of anilines and phenols with 1-butyl-3-methylpyridinium tribromide as a new reagent/solvent under mild conditions</style></title><secondary-title><style face="normal" font="default" size="100%">Tetrahedron Letters</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Bromination</style></keyword><keyword><style  face="normal" font="default" size="100%">Ionic liquid</style></keyword><keyword><style  face="normal" font="default" size="100%">Regioselective</style></keyword><keyword><style  face="normal" font="default" size="100%">[BMPy]Br(3)</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">MAR</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">9</style></number><publisher><style face="normal" font="default" size="100%">PERGAMON-ELSEVIER SCIENCE LTD</style></publisher><pub-location><style face="normal" font="default" size="100%">THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">50</style></volume><pages><style face="normal" font="default" size="100%">1007-1009</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;1-Butyl-3-methylpyridinium tribromide, [BMPy]Br(3) proves to be a highly efficient, regioselective reagent/solvent for nuclear bromination of various anilines and phenols. The synthesis and characterization of the room temperature ionic liquid [BMPy]Br(3) (2) is described. The bromination was carried out in the absence of organic solvents and in most cases the only extraction solvent needed was water. The spent 1-butyl-3-methylpyridinium bromide (1) was easily recycled. (C) 2008 Elsevier Ltd. All rights reserved.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">9</style></issue><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">2.618</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%">Borikar, Sanjay P.</style></author><author><style face="normal" font="default" size="100%">Daniel, Thomas</style></author><author><style face="normal" font="default" size="100%">Paul, Vincent</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Mild, efficient, and regioselective monobromination of arylamines and phenols using [BBIm]Br-3 as a new reagent</style></title><secondary-title><style face="normal" font="default" size="100%">Synthetic Communications</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Ionic liquid</style></keyword><keyword><style  face="normal" font="default" size="100%">monobromination</style></keyword><keyword><style  face="normal" font="default" size="100%">Regioselective</style></keyword><keyword><style  face="normal" font="default" size="100%">Solvent-free</style></keyword><keyword><style  face="normal" font="default" size="100%">[BBIm]Br3</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2010</style></year><pub-dates><date><style  face="normal" font="default" size="100%">APR</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">5</style></number><publisher><style face="normal" font="default" size="100%">TAYLOR &amp; FRANCIS INC</style></publisher><pub-location><style face="normal" font="default" size="100%">325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA</style></pub-location><volume><style face="normal" font="default" size="100%">40</style></volume><pages><style face="normal" font="default" size="100%">PII 919083074</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 an efficient method for the synthesis and characterization of the room-temperature ionic liquid 1,3-di-n-butylimidazolium tribromide ([BBIm]Br-3) (2) and its application as an efficient reagent and solvent for regioselective bromination of arylamines and phenols under mild conditions. The bromination was carried out in the absence of organic solvents, and in most cases, the only extraction solvent needed was water. The spent 1,3-di-n-butylimidazolium bromide (1) was easily recycled.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">5</style></issue><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">0.937</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%">Garud, Dinesh R.</style></author><author><style face="normal" font="default" size="100%">Jadhav, Amol R.</style></author><author><style face="normal" font="default" size="100%">Lahore, Santosh V.</style></author><author><style face="normal" font="default" size="100%">Kahar, Nilesh M.</style></author><author><style face="normal" font="default" size="100%">Joshi, Rohini R.</style></author><author><style face="normal" font="default" size="100%">Joshi, Ramesh A.</style></author><author><style face="normal" font="default" size="100%">Koketsu, Mamoru</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">First iodocyclization reaction of allene-thioureas: an efficient approach to bicyclic beta-lactams</style></title><secondary-title><style face="normal" font="default" size="100%">Tetrahedron Letters</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Allene</style></keyword><keyword><style  face="normal" font="default" size="100%">beta-Lactams</style></keyword><keyword><style  face="normal" font="default" size="100%">Iodocyclization</style></keyword><keyword><style  face="normal" font="default" size="100%">Regioselective</style></keyword><keyword><style  face="normal" font="default" size="100%">thiourea</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%">OCT</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">43</style></number><publisher><style face="normal" font="default" size="100%">PERGAMON-ELSEVIER SCIENCE LTD</style></publisher><pub-location><style face="normal" font="default" size="100%">THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">55</style></volume><pages><style face="normal" font="default" size="100%">5998-6000</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 regioselective iodocyclization reaction of allene-thioureas is described, for the first time, for the synthesis of bicyclic beta-lactams. The substitution at the allenyl part heavily influenced the iodocyclization reaction. The iodocyclization reaction of the unsubstituted allene-thioureas afforded six-membered 3-thia-1-dethiacephems whereas, the substituted allene-thiourea afforded seven-membered thiazepines along with five-membered isopenams. (C) 2014 Elsevier Ltd. All rights reserved.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">43</style></issue><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">2.68</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%">Garud, Dinesh R.</style></author><author><style face="normal" font="default" size="100%">Rode, Navnath D.</style></author><author><style face="normal" font="default" size="100%">Bathe, Sagar R.</style></author><author><style face="normal" font="default" size="100%">Ranpise, Vinod S.</style></author><author><style face="normal" font="default" size="100%">Joshi, Ramesh A.</style></author><author><style face="normal" font="default" size="100%">Joshi, Rohini R.</style></author><author><style face="normal" font="default" size="100%">Koketsu, Mamoru</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Synthesis of 3-Thia-1-dethiacephems via Regioselective Iodocyclization Reaction</style></title><secondary-title><style face="normal" font="default" size="100%">Synthesis-Stuttgart</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">-lactams</style></keyword><keyword><style  face="normal" font="default" size="100%">3-thia-1-dethiacephems</style></keyword><keyword><style  face="normal" font="default" size="100%">Iodocyclization</style></keyword><keyword><style  face="normal" font="default" size="100%">Regioselective</style></keyword><keyword><style  face="normal" font="default" size="100%">thiourea</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2015</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%">24</style></number><publisher><style face="normal" font="default" size="100%">GEORG THIEME VERLAG KG</style></publisher><pub-location><style face="normal" font="default" size="100%">RUDIGERSTR 14, D-70469 STUTTGART, GERMANY</style></pub-location><volume><style face="normal" font="default" size="100%">47</style></volume><pages><style face="normal" font="default" size="100%">3956-3962</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 key N-homopropargylthiourea intermediates, N-substituted 2-oxo-4-propargylazetidine-1-carbothioamides, were prepared by the reaction of a 4-propargylazetidin-2-one with isothiocyanates. Bicyclic -lactams, i.e. 3-thia-1-dethiacephems, were prepared via highly regioselective iodocyclization reaction of N-substituted 2-oxo-4-propargylazetidine-1-carbothioamides with molecular iodine at room temperature in moderate to excellent yields. A variety of functional groups were well tolerated under the reaction conditions.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">24</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%">2.652</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%">Kulal, A. B.</style></author><author><style face="normal" font="default" size="100%">Dongare, Mohan K.</style></author><author><style face="normal" font="default" size="100%">Shubhangi B. Umbarkar</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Sol-gel synthesised WO3 nanoparticles supported on mesoporous silica for liquid phase nitration of aromatics</style></title><secondary-title><style face="normal" font="default" size="100%">Applied Catalysis B-Environmental</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Aromatic nitration</style></keyword><keyword><style  face="normal" font="default" size="100%">heterogeneous catalysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Regioselective</style></keyword><keyword><style  face="normal" font="default" size="100%">Sol-gel synthesis</style></keyword><keyword><style  face="normal" font="default" size="100%">Water polarization</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%">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%">182</style></volume><pages><style face="normal" font="default" size="100%">142-152</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 series of WO3/SiO2 catalysts have been prepared by sol-gel method using ammonium metatungstate and ethyl silicate-40 (ES-40) as WO3 and SiO2 precursors respectively. The sol-gel method has led to the formation of WO3 nano-particles of 2-5 nm well dispersed on mesoporous silica along with some WO3' agglomerates. Formation of monoclinic WO3 was seen on the catalysts above 5 wt% WO3 loading by XRD analysis. Silica has shown very high surface area of 606 m(2)/g which decreased gradually upto 368 m(2)/g with 20 wt% WO3 loading. 20 wt% WO3/SiO2 catalyst has shown maximum acidity (0.56 mmol NH3/g) with presence of both Lewis and Bronsted acidity. UV-vis DRS analysis showed formation of polytungstate species along with WO3 on silica surface. The prepared catalysts were used for liquid phase nitration of aromatics using 70% nitric acid as nitrating agent without using any sulfuric acid. Very high conversion (99%) was obtained for p-cresol nitration with very high selectivity (99%) for 2-nitro p-cresol. The water formed during the reaction was removed azeotropically using ethylene dichloride as solvent. In case of o-xylene 74% conversion was obtained with 54% selectivity for 4-nitro o-xylene. The effect of different WO3 precursors on nitration efficiency was studied using sodium tungstate and tungstic acid as precursors. However,ammonium metatungstate showed the highest acidity. Sodium tungstate showed formation of dimer of sodium tungstate which did not show any acidity and hence no activity for nitration. The mechanism for nitration using WO3/SiO2 has been proposed based on polarisation of water on tungsten centre generating Bronsted acidity which can further generate nitronium ion giving subsequently nitration of the aromatic ring. (C) 2015 Elsevier B.V. All rights reserved.&lt;/p&gt;</style></abstract><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%">8.328</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, B. Senthil</style></author><author><style face="normal" font="default" size="100%">Gadakh, Sunita</style></author><author><style face="normal" font="default" size="100%">Sudalai, Arumugam</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">&quot;Metal-free'' synthesis of 1,2,3-triazoles via tandem azidation, intramolecular [3+2]-cycloaddition and aromatization of ethyl acrylate derivatives</style></title><secondary-title><style face="normal" font="default" size="100%">Tetrahedron Letters</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Intramolecular cycloaddition</style></keyword><keyword><style  face="normal" font="default" size="100%">Regioselective</style></keyword><keyword><style  face="normal" font="default" size="100%">Tandem azidation</style></keyword><keyword><style  face="normal" font="default" size="100%">triazoles</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2018</style></year><pub-dates><date><style  face="normal" font="default" size="100%">JUN </style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">59</style></volume><pages><style face="normal" font="default" size="100%">2365-2367</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;An efficient ``one-pot'' method for the synthesis of substituted 1,2,3-triazole derivatives in excellent yields as single regioisomer is reported. The key transformation involves an atom-efficient tandem azidation, intramolecular [3+2]-cycloaddition and aromatization of acrylate derivatives on treatment with NaN3 in DMF under mild conditions. (C) 2018 Elsevier Ltd. All rights reserved.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">24</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%">&lt;p&gt;2.193&lt;/p&gt;</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%">Ghosh, Arnab</style></author><author><style face="normal" font="default" size="100%">Mane, Manoj V.</style></author><author><style face="normal" font="default" size="100%">Rode, Haridas B.</style></author><author><style face="normal" font="default" size="100%">Patil, Siddappa A.</style></author><author><style face="normal" font="default" size="100%">Sridhar, Balasubramanian</style></author><author><style face="normal" font="default" size="100%">Dateer, Ramesh B.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Catalyst-free regioselective [3+2] cycloadditions of alpha,beta-unsaturated N-arylnitrones with alkenes to access functionalized isoxazolidines: a DFT study</style></title><secondary-title><style face="normal" font="default" size="100%">Chemistry-An Asian Journal</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">DFT study</style></keyword><keyword><style  face="normal" font="default" size="100%">isoxazolidines</style></keyword><keyword><style  face="normal" font="default" size="100%">metal and ligand free</style></keyword><keyword><style  face="normal" font="default" size="100%">nitrone cycloaddition</style></keyword><keyword><style  face="normal" font="default" size="100%">Regioselective</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2020</style></year><pub-dates><date><style  face="normal" font="default" size="100%">MAR</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">15</style></volume><pages><style face="normal" font="default" size="100%">899-903</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 catalyst-free regioselective [3+2]-cycloaddition of alpha,beta-unsaturated N-arylnitrones with alkenes are developed. The series of synthetically important functionalized isoxazolidines are prepared in good to excellent yields by step economic pathway under ligand and transition-metal-free conditions. The regioselective cycloaddition pathway supported by control experiment and computational study.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">6</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%">&lt;p&gt;4.056&lt;/p&gt;
</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%">Vijaykumar, Muniyappa</style></author><author><style face="normal" font="default" size="100%">Gonnade, Rajesh G.</style></author><author><style face="normal" font="default" size="100%">Punji, Benudhar</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Palladium-catalyzed regioselective C(4)-H fluoroalkoxylation of indoles through weak chelation assistance</style></title><secondary-title><style face="normal" font="default" size="100%">ChemCatChem</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">C-H activation</style></keyword><keyword><style  face="normal" font="default" size="100%">indoles</style></keyword><keyword><style  face="normal" font="default" size="100%">Palladium</style></keyword><keyword><style  face="normal" font="default" size="100%">Regioselective</style></keyword><keyword><style  face="normal" font="default" size="100%">Trifluoroalkoxylation</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2025</style></year><pub-dates><date><style  face="normal" font="default" size="100%">JAN</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">17</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;
	Installing fluoroalkyl motifs into biorelevant indoles is particularly interesting due to their ubiquitous presence in drug molecules. Herein, we demonstrate the regioselective C4 fluoroalkoxylation of indoles using fluoroalcohols via palladium-catalyzed chelation-assisted C &amp;amp; horbar;H activation. The weak chelating benzoyl moiety at the C3 position acts as a directing group for remote C(4)&amp;amp; horbar;H fluoroalkoxylation of diversely substituted indoles. This methodology demonstrates a high level of regioselectivity and tolerates a range of crucial functional groups, yielding diverse trifluoroalkoxylated indoles in moderate to good yields. Removal of directing/protecting groups and further functionalization established the synthetic utility of the methodology. A preliminary mechanistic investigation is conducted by isolating the palladacycle intermediate and performing the deuterium scrambling study. The regioselective C4 fluoroalkoxylation of indoles with various fluoroalcohols is achieved by the palladium-catalyzed weak chelation assistance strategy. The reaction is compatible for a range of important functionalities and proceeds via the intermediacy of a six-membered palladacycle following a Pd(II)/Pd(IV) pathway. image&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">2</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;
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