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Rh(I) or Rh(III) supported on MCM-41-catalyzed selective hydroformylation–acetalization of aryl alkenes: Effect of the additives

Paper ID Volume ID Publish Year Pages File Format Full-Text
44698 46056 2006 8 PDF Available
Title
Rh(I) or Rh(III) supported on MCM-41-catalyzed selective hydroformylation–acetalization of aryl alkenes: Effect of the additives
Abstract

Rh(I) and Rh(III) impregnated on mesoporous supports such as MCM-41 have demonstrated a very high catalytic activity in the production of acetals under the hydroformylation conditions of alkenes. The one pot process that combines hydroformylation and acetalization processes leading to acetals as major products was carefully studied. R(I) supported catalysts combined with the heteropolyacid H3PW12O40 showed high catalytic activity towards the formation of acetals. However, Rh(III) supported catalysts were much more active in the absence of any additive. The addition of P(OPh)3 increased significantly the selectivity of the reaction towards the branched acetals. The effects of the addition of different types of phosphine and phosphite ligands were studied.

Keywords
Hydroformylation; Acetalization; Aldehydes; Acetals; Rhodium; Styrene; Phosphine; Phosphite; Syngas
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Rh(I) or Rh(III) supported on MCM-41-catalyzed selective hydroformylation–acetalization of aryl alkenes: Effect of the additives
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 303, Issue 2, 28 April 2006, Pages 213–220
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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