Ambivalent reactivity modes of β-chlorovinyl ketones: electrophilic lithium [3]cumulenolates from soft vinyl enolization strategy.
作者： Hun Young Kim , Edward Oscar Rooney , Raymond Phillip Meury , Kyungsoo Oh
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摘要: Treatment of β-chlorovinyl ketones with NEt3 and LiClO4 or LiBr results in formation electrophilic lithium cumulenolates which smoothly react nucleophiles such as another cumulenolate ketimines to afford vinyl allenones like (II) pyrrolidines type (IV)/(VII) a stereoselective manner.
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