Cyanotrimethylsilane as a versatile reagent for introducing cyanide functionality
作者:Kiitiro Utimoto、Yukio Wakabayashi、Takafumi Horiie、Masaharu Inoue、Yuho Shishiyama、Michio Obayashi、Hitosi Nozaki
DOI:10.1016/s0040-4020(01)88595-1
日期:1983.1
Cyanotrimethylsilane adds to some ⇌,β-unsaturated ketones in conjugate manner under the catalytic action of Lewis acids such as triethylaluminium, aluminium chloride, and SnCl2. Hydrolysis of the products gives β-cyano ketones which are identical to the hydrocyanated products of the starting enones. The title silicon reagent reacts with acetals and orthoesters under the catalytic action of SnCI2 or BF3-OEt2
氰基三甲基硅烷在路易斯酸(如三乙基铝,氯化铝和SnCl 2)的催化作用下以共轭方式加成一些⇌,β-不饱和酮。产物的水解产生与起始烯酮的氢氰化产物相同的β-氰基酮。标题硅试剂在SnCl 2或BF 3 -OEt 2的催化作用下与乙缩醛和原酸酯反应,得到2-烷氧基-和2,2-二烷氧基烷基-腈。将反应应用于O-保护的β-D-呋喃呋喃糖酶,以优异的产率选择性地产生β-d-呋喃呋喃糖基氰化物。