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Acetals as chiral auxillaries Part 4 (1) : Asymmetric synthesis of γ,δ-ethylenic aldehydes an approach to the California Red scale pheromone

✍ Scribed by P. Mangeney; A. Alexakis; J.F. Normant


Publisher
Elsevier Science
Year
1987
Tongue
French
Weight
176 KB
Volume
28
Category
Article
ISSN
0040-4039

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✦ Synopsis


Asymmetric synthesis of r,b-ethylenic aldehydes An approach to the California Red scale pheromone P. Mangeney*, A. Alexakis, J.F. Normant Laboratoire de Chimie des Organo-61Bments, tour 44-45 Universite P. et M. Curie, 4 place Jussieu F-75252 PARIS CBdex 05 Chiral acetals with a twofold axis of symmetry have been extensively "templates" these last few years (2) ; we have recently reported the diastereoselective l-4 addition of the PhCu,BF3 -eagent on such a, 5 ethylenic a new way to B-phenylated al_dehydes with fairly good ee (la).