N-acyliminium ions, which undergo the nucleophilic addition of trimethylsilyl cyanide (TMSCN) to provide the N-protected α-amino nitriles in very good yield. A variety of α-amido p-tolylsulfones were prepared from aromatic as well as aliphatic aldehydes for the synthesis of α-amino nitriles.
在催化量的
溴化铋(5 mol%)的存在下,α-酰胺基
对甲苯基砜转化为N-酰基
亚胺离子,对它们进行亲核加成三甲基甲
硅烷基
氰化物(TMSCN)以提供N-保护的α-
氨基腈产量很高。从芳族醛和脂族醛制备了多种α-酰胺基对
甲苯砜,用于合成α-
氨基腈。