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The role of substituents of chlorostannoxanes on the reactivity of the catalysts during the synthesis of cyclic carbonates using epoxides and carbon dioxide
Author(s) -
Pulla Sharon,
Ramidi Punnamchandar,
Jarvis Benjamin L.,
Munshi Pradip,
Griffin William O.,
Darsey Jerry A.,
Dallas Jerry L.,
Pokala Vedavalli,
Ghosh Anindya
Publication year - 2012
Publication title -
greenhouse gases: science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.45
H-Index - 32
ISSN - 2152-3878
DOI - 10.1002/ghg.43
Subject(s) - catalysis , carbon dioxide , chemistry , reactivity (psychology) , yield (engineering) , solvent , organic chemistry , carbonate , turnover number , medicinal chemistry , base (topology) , materials science , medicine , mathematical analysis , alternative medicine , mathematics , pathology , metallurgy
We report a study on the effect of substituents on the activity of chlorostannoxane catalysts in coupling epoxides and carbon dioxide for cyclic carbonate synthesis. All butyl‐substituted ( 1a ) chlorostannoxane was found to yield cyclic carbonates in high turnover number (TON 2340) at 300 psi CO 2 , 130 °C in 2 h. All the reactions were performed under solvent‐free conditions in the presence of a Lewis base which acts as a co‐catalyst. The activity was found to change with change in the substituents on the catalysts. The effect of change in substituents was studied with respect to variation in essential parameters, such as time, temperature, pressure, and difference in catalyst to co‐catalyst ratio. © 2012 Society of Chemical Industry and John Wiley & Sons, Ltd