Regioselective Borohydride and Grignard Reactions in (<i>E</i>)-3-(Arylmethylene)-2-oxotetrahydrofurans
作者:Dibyendu De、Manju Seth、Amiya Prasad Bhaduri
DOI:10.1055/s-1990-27064
日期:——
Convenient syntheses of (E)-2-(arylmethylene)-1,4-butanediols 2a-c, 2-(aryl)-3-methylenetetrahydrofurans 4a,c, 3-(arylmethylene) -2-methyl-2,5-pentanediols 7a-c, 4-(arylmethylene)-3-ethyl- 3,6-hexanediols 7d-f, 2,2-dialky1-3-(arylmethylene)tetrahydrofurans 9a-f and 2,2-dialkyl-3-(arylmethyl)tetrahydrofurans 10a-b,10d-e are described. The synthetic utility of the title compounds is obvious from the ease of preparation of these new type of tetrahydrofuran derivatives.
(E)-2-(芳基亚甲基)-1,4-丁二醇的便捷合成 2a-c, 2-(芳基)-3-亚甲基四氢呋喃 4a,c, 3-(芳基亚甲基)-2-甲基-2,5-戊二醇7a-c,4-(芳基亚甲基)-3-乙基-3,6-己二醇 7d-f,描述了2,2-二烷基-3-(芳基亚甲基)四氢呋喃9a-f和2,2-二烷基-3-(芳基甲基)四氢呋喃10a-b,10d-e。从这些新型四氢呋喃衍生物的制备容易性来看,标题化合物的合成效用是显而易见的。