corresponding 2-chloro derivative with a base, also results when the alcohol itself is treated with cyanogen bromide; related γ-hydroxy acyclic tertiary amines similarly undergo fragmentation in this reaction. In contrast, cyclic analogues such as β-1,3-dimethyl-4-phenyl-4-piperidinol are not cleaved by cyanogen bromide (corresponding N-cyano derivatives are formed in low yield) even though β-4-chloro-1,3-di
α-4-
二甲氨基-3-甲基-1,2-二苯基丁-2-醇裂解为顺式 H/Ph 3-甲基-1,2-二苯基丙-2-烯,通常通过处理相应的 2-
氯诱导含碱的衍
生物,当醇本身用
溴化氰处理时也会产生;相关的γ-羟基无环叔胺在该反应中类似地发生断裂。相比之下,环状类似物如 β-
1,3-二甲基-4-苯基-4-哌啶醇不会被
溴化氰裂解(相应的 N-
氰基衍
生物以低产率形成),即使 β-4-
氯-1, 3-二甲基-
4-苯基哌啶被
氰化钾裂解成反式H/Ph 5(N-
氰基甲基-N-甲基
氨基)-3-苯基戊-2-烯。