A Novel Uncatalyzed Insertion Reaction of In Situ Formed Trichlorosilyl Cyanide with Imines: A Facile Silicon Mediated Synthesis of α-Aminonitriles
作者:Abdel-Aziz S. El-Ahl
DOI:10.1081/scc-120016363
日期:2003.1.4
Abstract The tetrachlorosilane-potassium cyanide reagent combination, (trichloro-silyl cyanide-in situ) is a new, safe and versatile hydrogen cyanide substitute. The reaction of this reagent with saturated aldimines 1a–j and benzophenone oxime 3, in absences of any catalyst, affords the corresponding α-aminonitriles 2a–j and 4, respectively, in excellent yield. Under the same condition the bis-imine
摘要 四氯硅烷-氰化钾试剂组合(原位三氯硅烷)是一种新型、安全且通用的氰化氢替代品。该试剂与饱和醛亚胺 1a-j 和二苯甲酮肟 3 反应,在没有任何催化剂的情况下,分别以极好的收率得到相应的 α-氨基腈 2a-j 和 4。在相同条件下,双亚胺 5 生成咪唑并 [1,2-a] 喹喔啉衍生物 6。此外,三氯甲硅烷基氰化物原位经过区域特异性加成到 α, β-不饱和醛亚胺 7a-e 上,得到相应的 1,2 - 在极其温和的条件下,高产率的加成产物 8a-e。