A facile and general synthesis of various N-substituted cyanamides was accomplished by the Tiemann rearrangement of amidoximes with benzenesulfonyl chlorides (TsCl or o-NsCl) and DIPEA.
通过用
苯磺酰氯(TsCl或邻-NsCl)和DI
PEA进行mid胺
肟的Tiemann重排,可以轻松而通用地合成各种N-取代的
氰胺。