Vinyl-allenes as dienes in the Lewis acid-mediated hetero Diels–Alder reaction with aldehydes
作者： David Regás , Marı́a M Afonso , Antonio Galindo , J.Antonio Palenzuela
DOI: 10.1016/S0040-4039(00)01140-0
关键词: Aldehyde 、 Chemistry 、 Cycloaddition 、 Diels–Alder reaction 、 Lewis acids and bases 、 Organic chemistry
摘要: Abstract The Lewis acid-mediated, hetero Diels–Alder reaction of a vinyl-allene system with aldehydes as heterodienophiles has been carried out. In the cases studied, only two cycloadducts have obtained, which correspond to endo (major compound) and exo (minor approach aldehyde through less hindered face dienic system.
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