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Catalytic transfer hydrogenolysis of α-methylbenzyl alcohol using palladium catalysts and formic acid

Paper ID Volume ID Publish Year Pages File Format Full-Text
42835 45943 2009 6 PDF Available
Title
Catalytic transfer hydrogenolysis of α-methylbenzyl alcohol using palladium catalysts and formic acid
Abstract

The catalytic transfer hydrogenolysis (CTH) of α-methylbenzyl alcohol (MBA) was studied using palladium catalysts and formic acid, with the intent of developing a new approach for the production of propylene oxide (PO). The effects of support, hydrogen donor, molar ratio of HCOOH to MBA, water content, reaction temperature and catalyst recycling were evaluated. Using formic acid as hydrogen donor and Pd/C as catalyst, one can convert MBA to ethylbenzene (EB) with very high selectivity (98.8%) and high conversion (98.8%) at 80 °C for 40 min. H+ ion plays an important role, for it promotes the formation of active hydrogen species in the reaction process. A reaction mechanism was proposed to account for the results obtained in the study.

Graphical abstractThe catalytic transfer hydrogenolysis of α-methylbenzyl alcohol was studied using palladium catalysts and formic acid, with the intent of developing a new approach for the production of propylene oxide by a recycling process.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Catalytic transfer hydrogenolysis; α-Methylbenzyl alcohol; Palladium catalysts; Formic acid; Propylene oxide; Reaction mechanism
First Page Preview
Catalytic transfer hydrogenolysis of α-methylbenzyl alcohol using palladium catalysts and formic acid
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 354, Issues 1–2, 15 February 2009, Pages 38–43
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis