Synthesis of polyamines via hydroaminomethylation of alkenes with urea—a new, effective and versatile route to dendrons and dendritic core molecules
作者:Kai-Sven Müller、Fikret Koç、Stefan Ricken、Peter Eilbracht
DOI:10.1039/b513348c
日期:——
Polyamines, structurally related to putrescines and spermidines, are easily obtainable via hydroaminomethylation of methylallylphthalimide with primary or secondary amines. In addition, hydroaminomethylation of monoolefins with urea as a synthetic equivalent for ammonia, in contrast to other methods (e.g. the alkylation of ammonia or ammonium salts), allows selective synthesis of symmetric tertiary
在结构上与腐胺和亚精胺有关的多胺很容易通过甲基烯丙基邻苯二甲酰亚胺与伯胺或仲胺的加氢氨基甲基化反应而制得。此外,与其他方法(例如氨或铵盐的烷基化)相比,用尿素作为氨的合成等同物进行的单烯烃的氢氨基甲基化(例如氨或铵盐的烷基化)可以选择性地合成对称的叔胺。通过将两种方法结合,可方便地获得树枝状和树枝状聚合物核。