Synthese von γ-hydroxynitrilen, γ-butyrolactonen und α-methyleno-γ-butyrolactonen aus epoxiden und natrium-[cyan-(triphenylphosphoranyliden)-methanid]
作者:Hans Jürgen Bestmann、Martin Schmidt
DOI:10.1016/s0040-4039(00)96056-8
日期:1987.1
The highly nucleophilic ylide-anion of sodium-[cyano-(triphenylphosphoranylidene)-methanide] attacks oxiranes by ring-opening. Depending on the work-up-conditions and the further reactions being employed, γ-hydroxynitriles, γ-butyrolactones or α-methyleno-γ-butyrolactones are obtained from the primary products thus formed.
钠-[氰基-(三苯基正膦亚基)-甲烷]的高度亲核性的内酯-阴离子通过开环攻击环氧乙烷。取决于后处理条件和所采用的进一步反应,从如此形成的初级产物获得γ-羟基腈,γ-丁内酯或α-甲基-γ-丁内酯。