Enantioselective chiral borane-mediated aldol reactions of silyl ketene acetals with aldehydes. The novel effect of the trialkysilyl group of the silyl ketene acetal on the reaction course
摘要:
Highly enantioselective aldol reactions of silyl ketene acetals with a variety of aldehydes were achieved by using chiral boranes prepared from the sulfonamides of alpha-amino acids.
Enantioselective chiral borane-mediated aldol reactions of silyl ketene acetals with aldehydes. The novel effect of the trialkysilyl group of the silyl ketene acetal on the reaction course
摘要:
Highly enantioselective aldol reactions of silyl ketene acetals with a variety of aldehydes were achieved by using chiral boranes prepared from the sulfonamides of alpha-amino acids.
The synthesis of 6-substituted 3-fluoro-5,6-dihydropyran-2-ones under mild conditions is described. The key step of the synthesis involves a Julia–Kocienski olefination.
Enantioselective chiral borane-mediated aldol reactions of silyl ketene acetals with aldehydes. The novel effect of the trialkysilyl group of the silyl ketene acetal on the reaction course
Highly enantioselective aldol reactions of silyl ketene acetals with a variety of aldehydes were achieved by using chiral boranes prepared from the sulfonamides of alpha-amino acids.