α-Alkylation of Lithiated (2<i>E</i>,4<i>E</i>)-2,4-Alkadienal Dimethylhydrazones. Preparation of α-Alkylated (3<i>E</i>,5<i>Z</i>)-3,5-Alkadienal Dimethylhydrazones
作者:Kaoru Matsumiya、Ken-ichi Nakano、Rikisaku Suemitsu、Masakazu Yamashita
DOI:10.1246/cl.1988.1837
日期:1988.11.5
Alkylation of lithium salts of (2E,4E)-2,4-alkadienal dimethylhydrazones with alkyl halides afforded α-alkylated (3E,5Z)-3,5-alkadienal dimethylhydrazones with the rearrangement of two double bonds in good yields.
(2E,4E)-2,4-链二烯醛二甲基腙的锂盐与卤代烷烷基化得到α-烷基化的(3E,5Z)-3,5-链二烯醛二甲基腙,两个双键重排,收率良好。