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Homogeneous catalytic hydrogenolysis of chlorodifluoromethane

Paper ID Volume ID Publish Year Pages File Format Full-Text
43024 45951 2008 6 PDF Available
Title
Homogeneous catalytic hydrogenolysis of chlorodifluoromethane
Abstract

CHF2Cl has been converted to CHF3 and CH4 as main products when hydrogenolyzed in the presence of RhCl3(py)3 and other homogeneous catalysts modified with bases (amines and fluoride ion). Pyridine additive was partly hydrogenated and then alkylated to N-alkylpiperidines. Nucleophilic attack of fluoride ion on the substrate as well as difluorocarbene formation and hydrogenolysis in the coordination sphere of rhodium are the possible crucial steps leading to the gaseous products.

Graphical abstractCHF2Cl has been converted to CHF3 and CH4 as main products when hydrogenolyzed in the presence of RhCl3(py)3 and other homogeneous catalysts modified with bases (amines and fluoride ion). Pyridine additive was partly hydrogenated and then alkylated to N-alkylpiperidines. Nucleophilic attack of fluoride ion on the substrate as well as difluorocarbene formation and hydrogenolysis in the coordination sphere of rhodium are the possible crucial steps leading to the gaseous products. Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Chlorodifluoromethane; Hydrogenolysis; Rhodium; Trifluoromethane; Difluorocarbene
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 342, Issues 1–2, 30 June 2008, Pages 131–136
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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