Tetrahedron

Etude de cycloadditions aux allenes gem-diactives par deux groupes electroattracteurs

R Danion-Bougot, D Danion, R Carrié

文献索引：Danion-Bougot, Renee; Danion, Daniel; Carrie, Robert Tetrahedron, 1985 , vol. 41, # 10 p. 1953 - 1958

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被引用次数: 10

摘要

Allènes, when they have two electron-withdrawing groups on the same carbon, are closely related to ketenes and can be used as synthetic equivalents of these compounds. Several synthetic approaches are investigated, such as déhydrohalogénation reactions, and an analogue of the Wolff transposition of diazoketones. These allènes undergo readily cycloadditions with imines and diazoalkanes, leading to equivalents of β-lactams and ...