Tetrahedron letters

Tetrakis (1-methylcyclopropyl) ethylene in four steps from α-methyl-γ-butyrolactone

G Böhrer, R Knorr

文献索引：Boehrer, Gerald; Knorr, Rudolf Tetrahedron Letters, 1984 , vol. 25, # 34 p. 3675 - 3678

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被引用次数: 13

摘要

Abstract A short and efficient synthesis of bis (1-methylcyclopropyl) ketone ({= 6}) via the spiro-acetal {= 4} from α-methyl-γ-butyrolactone ({= 1}) been found, and reductive dimerization of {= 6} by McMurry coupling yields tetrakis (1-methylcyclopropyl) ethylene ({= 7}) in competition with ring-opened products ({= 8} and ({= 9}).