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Rhodium-catalyzed one-pot hydroformylation–cyclization of allylbenzene derivatives: Simple and efficient route to 5,6-dihydronaphthalenes

Paper ID Volume ID Publish Year Pages File Format Full-Text
51074 46828 2010 5 PDF Available
Title
Rhodium-catalyzed one-pot hydroformylation–cyclization of allylbenzene derivatives: Simple and efficient route to 5,6-dihydronaphthalenes
Abstract

The one-pot hydroformylation–cyclization of allylbenzene derivatives by the catalyst system Rh(CO)2acac/ultranox626/CO/H2/CH2Cl2 led chemoselectively to 5,6-dihydronaphthalene derivatives 5a–d in good yields. The addition of a catalytic amount of H3PO4 enhanced in situ the cyclization process via the nucleophilic attack on the carbonyl group of the linear aldehyde, and finally the elimination of alcohol. The type of substitution on phenyl group of the allylbenzene is of great importance in enhancing the cyclization process.

Keywords
Allylbenzene; Eugenol; Hydroformylation; Cyclization; Dihydronaphthalenes; Rhodium; Phosphite; Ultranox626
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Rhodium-catalyzed one-pot hydroformylation–cyclization of allylbenzene derivatives: Simple and efficient route to 5,6-dihydronaphthalenes
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 11, Issue 8, 31 March 2010, Pages 778–782
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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