C - Chemistry – Metallurgy – 07 – B
Patent
C - Chemistry, Metallurgy
07
B
C07B 37/04 (2006.01) C07B 49/00 (2006.01) C07C 1/32 (2006.01) C07D 295/092 (2006.01) C07F 9/09 (2006.01) C07F 9/40 (2006.01)
Patent
CA 2486803
The present invention provides a process for preparing a vinylaromatic compound comprising reacting an arylmetal reagent selected from arylmagnesium reagents and aryllithium reagents with a vinylphosphate in the presence of a palladium catalyst. The present invention also provides a process for preparing a vinylphosphate comprising reacting an enolizable ketone with a sterically hindered Grignard reagent and a halophosphate diester.
L'invention concerne un procédé de préparation d'un composé vinylaromatique, consistant à faire réagir un réactif d'arylmétal choisi dans le groupe comprenant des réactifs d'arylmagnésium et des réactifs d'aryllithium avec un vinylphosphate en présence d'un catalyseur de palladium. L'invention concerne également un procédé de préparation d'un vinylphosphate consistant faire réagir un cétone énolisable avec un réactif de Grignard encombré au niveau stérique et un diester d'halophosphate.
Dsm Ip Assets B.v.
Fetherstonhaugh & Co.
Pfizer Inc.
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