Suzuki-Kumada coupling of bromoaroylmethylidenephosphoranes

Citation
T. Thiemann et al., Suzuki-Kumada coupling of bromoaroylmethylidenephosphoranes, NEW J CHEM, 23(11), 1999, pp. 1067-1070
Citations number
17
Categorie Soggetti
Chemistry
Journal title
NEW JOURNAL OF CHEMISTRY
ISSN journal
11440546 → ACNP
Volume
23
Issue
11
Year of publication
1999
Pages
1067 - 1070
Database
ISI
SICI code
1144-0546(199911)23:11<1067:SCOB>2.0.ZU;2-C
Abstract
Bromoaroylmethylidenephosphoranes 3 are reacted with aryl- and hetarylboron ic acids under Suzuki-Kumada conditions to yield biaryl- and arylhetaryl-ca rbonylmethylidenephosphoranes 4. The reaction can also be run in a one-step procedure from (bromoaroylmethyl)triphenylphosphonium bromides 2. 4 are ai r-stable phosphoranes that undergo Wittig olefination reactions with aldehy des under benzoic acid catalysis.