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ChemInform Abstract: Palladium-Indolylphosphine-Catalyzed Hiyama Cross-Coupling of Aryl Mesylates

ChemInform Abstract: Palladium-Indolylphosphine-Catalyzed Hiyama Cross-Coupling of Aryl Mesylates

Authors :
Chak Po Lau
Hang Wai Lee
Fuk Yee Kwong
Chau Ming So
Source :
ChemInform. 40
Publication Year :
2009
Publisher :
Wiley, 2009.

Abstract

Aryl mesylates are found to be applicable as electrophiles in organosilicon-mediated coupling reactions. The catalyst system comprising 2 mol % of Pd(OAc)2 and CM-phos supporting ligand is highly effective in catalyzing Hiyama cross-coupling of various aryl and heteroaryl mesylates. Interesting acid additive effects show that the presence of 0.25−0.50 equiv of acetic acid efficiently suppresses the mesylate decomposition and generally promotes the coupling product yields.

Details

ISSN :
15222667 and 09317597
Volume :
40
Database :
OpenAIRE
Journal :
ChemInform
Accession number :
edsair.doi...........a7d3c5250bcf1c20bee4314b8eb8a2e9
Full Text :
https://doi.org/10.1002/chin.200924076