<?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%">Tonde, S. S.</style></author><author><style face="normal" font="default" size="100%">Kelkar, Ashutosh A.</style></author><author><style face="normal" font="default" size="100%">Bhadbhade, Mohan M.</style></author><author><style face="normal" font="default" size="100%">Chaudhari, Raghunath V.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Isolation and characterization of an iodide bridged dimeric palladium complex in carbonylation of methanol</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Organometallic Chemistry</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">dirneric palladium</style></keyword><keyword><style  face="normal" font="default" size="100%">IR spectroscopy</style></keyword><keyword><style  face="normal" font="default" size="100%">methanol carbonylation</style></keyword><keyword><style  face="normal" font="default" size="100%">palladium catalyst</style></keyword><keyword><style  face="normal" font="default" size="100%">reaction mechanism</style></keyword><keyword><style  face="normal" font="default" size="100%">UV</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%">MAR</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">6</style></number><publisher><style face="normal" font="default" size="100%">ELSEVIER SCIENCE SA</style></publisher><pub-location><style face="normal" font="default" size="100%">PO BOX 564, 1001 LAUSANNE, SWITZERLAND</style></pub-location><volume><style face="normal" font="default" size="100%">690</style></volume><pages><style face="normal" font="default" size="100%">1677-1681</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Palladium-catalyzed carbonylation of methanol in presence of iodide promoters was investigated. Iodide bridged palladium dimeric complex, [PPh3CH3](2)[Pd2I6] was isolated from the carbonylation reaction mixture and characterized using X-ray crystallography. Reaction mechanism was proposed based on IR and UV spectroscopic characterizations of catalytic species involved in the catalytic cycle. The isolated dimeric palladium species, [Pd2I6](2-) underwent carbonylation to give monomeric species [PdI3CO](-) at atmospheric pressure of carbon monoxide. It was also observed that PPh3 plays an important role to avoid catalyst deactivation at higher temperatures. Turnover frequency (TOF) of 1052 h(-1) was achieved using Pd(OAC)(2)-HI-PPh3 catalyst system at 175 degrees C. (c) 2005 Elsevier B.V. All rights reserved.&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%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">2.336</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, N. S. C. Ramesh</style></author><author><style face="normal" font="default" size="100%">Raj, I. Victor Paul</style></author><author><style face="normal" font="default" size="100%">Sudalai, A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Sulfonamide- and hydrazine-based palladium catalysts: stable and efficient catalysts for C-C coupling reactions in aqueous medium</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%">arylation reaction</style></keyword><keyword><style  face="normal" font="default" size="100%">Heck reaction</style></keyword><keyword><style  face="normal" font="default" size="100%">palladium catalyst</style></keyword><keyword><style  face="normal" font="default" size="100%">Sonogashira reaction</style></keyword><keyword><style  face="normal" font="default" size="100%">Suzuki coupling reaction</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2007</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%">1-2</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%">269</style></volume><pages><style face="normal" font="default" size="100%">218-224</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Syntheses of a novel family of sulfonamide-based palladium complexes and phenylhydrazine-based palladacycles are described. These catalysts are thermally stable, and not sensitive to air and moisture and some are completely soluble in water. These catalysts have shown excellent activity (good yields and high turnover numbers) and product selectivity in several arylation reactions including Suzuki, Heck, and Sonogashira reactions carried out totally under aqueous conditions. (c) 2006 Elsevier B.V. All rights reserved.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">1-2</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">3.958</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%">Bhogeswararao, Seemala</style></author><author><style face="normal" font="default" size="100%">Srinivas, D.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Chemoselective hydrogenation of cinnamaldehyde over Pd/CeO2-ZrO2 catalysts</style></title><secondary-title><style face="normal" font="default" size="100%">Catalysis Letters</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">alpha</style></keyword><keyword><style  face="normal" font="default" size="100%">beta-Unsaturated aldehyde</style></keyword><keyword><style  face="normal" font="default" size="100%">Ceria-zirconia</style></keyword><keyword><style  face="normal" font="default" size="100%">Cinnamaldehyde</style></keyword><keyword><style  face="normal" font="default" size="100%">Hydrogenation</style></keyword><keyword><style  face="normal" font="default" size="100%">palladium catalyst</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%">NOV</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">1-2</style></number><publisher><style face="normal" font="default" size="100%">SPRINGER</style></publisher><pub-location><style face="normal" font="default" size="100%">233 SPRING ST, NEW YORK, NY 10013 USA</style></pub-location><volume><style face="normal" font="default" size="100%">140</style></volume><pages><style face="normal" font="default" size="100%">55-64</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Selective hydrogenation of cinnamaldehyde over Pd (2 wt%) supported on CeO2, ZrO2 and CeO2-ZrO2 catalysts is reported for the first time. In general, the olefinic (C=C) group of cinnamaldehyde is preferentially hydrogenated compared to the carbonyl (C=O) group. This selectivity preference could, however, be altered or reversed by adding alkali additives to the catalyst. The influence of additive on the structure and redox properties of the active sites and correlation of that with selective hydrogenation activity is investigated.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">1-2</style></issue><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">1.907</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%">Gaikwad, Shahaji R.</style></author><author><style face="normal" font="default" size="100%">Deshmukh, Satej S.</style></author><author><style face="normal" font="default" size="100%">Chikkali, Samir H.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Pd-Phosphinesulfonate bravely battles the ``vinyl halide insertion copolymerization'' barricade</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Polymer Science Part A-Polymer Chemistry</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">functional olefin</style></keyword><keyword><style  face="normal" font="default" size="100%">insertion copolymerization</style></keyword><keyword><style  face="normal" font="default" size="100%">palladium catalyst</style></keyword><keyword><style  face="normal" font="default" size="100%">phosphinesulfonate</style></keyword><keyword><style  face="normal" font="default" size="100%">vinyl chloride</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%">1</style></number><publisher><style face="normal" font="default" size="100%">WILEY-BLACKWELL</style></publisher><pub-location><style face="normal" font="default" size="100%">111 RIVER ST, HOBOKEN 07030-5774, NJ USA</style></pub-location><volume><style face="normal" font="default" size="100%">52</style></volume><pages><style face="normal" font="default" size="100%">1-6</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;This overview provides insights into the current state-of-the-art solutions to insertion copolymerization of functional olefinic monomers. The challenges in insertion copolymerization of functional olefinic monomers, with a special emphasis on vinyl halides, are highlighted. The crucial design of the Pd-phosphinesulfonate [Pd(PO)] enables up to 3.6 mol % incorporation of vinyl fluoride (VF) in an ethylene-VF copolymerization reaction. In a significant development, insertion copolymerization of industrially relevant functional olefin, that is, vinyl chloride (VC), was unambiguously ascertained, and a detectable amount of VC (0.4 mol %) was incorporated (at the chain end). In a detailed investigation, the in situ existence of (PO)PdH species during the polymerization was revealed, and it was demonstrated that these are indeed responsible for VC incorporation. (c) 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 1-6&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%">3.43</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%">Tonde, Sunil S.</style></author><author><style face="normal" font="default" size="100%">Rajurkar, Kalpendra B.</style></author><author><style face="normal" font="default" size="100%">Pagar, Nitin S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Kinetics of palladium catalyzed methoxycarbonylation of vinyl acetate to methyl-2-acetoxypropionate for the synthesis of lactic acid</style></title><secondary-title><style face="normal" font="default" size="100%">International Journal of Chemical Kinetics</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Hydrolysis</style></keyword><keyword><style  face="normal" font="default" size="100%">kinetics</style></keyword><keyword><style  face="normal" font="default" size="100%">Lactic acid</style></keyword><keyword><style  face="normal" font="default" size="100%">Methoxycarbonylation</style></keyword><keyword><style  face="normal" font="default" size="100%">methyl lactate</style></keyword><keyword><style  face="normal" font="default" size="100%">methyl-2-acetoxypropionate</style></keyword><keyword><style  face="normal" font="default" size="100%">palladium catalyst</style></keyword><keyword><style  face="normal" font="default" size="100%">VAM</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2026</style></year><pub-dates><date><style  face="normal" font="default" size="100%">SEP</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">58</style></volume><pages><style face="normal" font="default" size="100%">627-636</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;
	Lactic acid is crucial for food production and energy generation in body. It also has been a key monomer of poly lactic acid, biodegradable plastic. As methoxy carbonylation of vinyl acetate (VAM) produces methyl-2-acetoxypropionate, and methyl lactate as intermediates for lactic acid, its kinetic investigations are important to understand the reaction behavior. In this paper a study was conducted on the kinetics of methoxyarbonylation for vinyl acetate in a semi-batch slurry reactor across a temperature range of 363-383K, utilizing [PdCl2(PPh3)2] catalyst. The effect of catalyst, methanol, vinyl acetate monomer (VAM) concentration and partial pressure of carbon monoxide (CO) on the reactants and products concentration was investigated with respect to time. Catalytic methoxycarbonylation of VAM produces methyl acetoxy propionate which further forms methyl lactate and methyl acetate through consecutive reaction. Methyl acetoxy propionate and methyl lactate thus formed can be converted to lactic acid through hydrolysis. The methoxycarbonylation conditions produce byproducts dimethyl acetate and methyl acetate through parallel reaction. Based on the initial rate data of formations of lactic acid precursors through methoxycarbonylation and consecutive reaction byproducts through parallel reaction, and trend behavior of initial rates with concentrations of reactants, different empirical rate equations were evaluated. The integral concentration-time data was fitted to evaluate the kinetic parameters at various temperatures. General elimination method and thermodynamic principles were used to suggest an appropriate empirical rate equation as shown below.r1, r2, and r3 are rates of methoxycarbonylation reaction (methyl-2-acetoxypropionate formation), consecutive reaction (methyl lactate formation) and parallel reaction (dimethyl acetal formation) respectively. k1, k2, and k3 are equilibrium constants for the reactions r1, r2, and r3 respectively. KB and KC are equilibrium constants for VAM and methanol CA, CB, CC, CD and CW are concentration of dissolved CO in the liquid phase, VAM, methanol, methyl-2-acetoxypropionate and catalyst respectively. For catalyst and CO, the methoxycarbonylation reaction rate was observed to be first order, while for VAM and methanol, it was first order with a tendency to zero order. Energy of activation needed for the catalytic reaction was 81.62 kJ/mol. For a catalytic reaction, selectivity towards the required product is desirable. Kinetic investigations can be utilized to achieve maximum selectivity towards the desired products at optimum reaction rate. The proposed model suggests that 95%-97% selectivity towards the combined carbonylated products (methyl-2-acetoxypropionate and methyl lactate) can be achieved.&lt;/p&gt;
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