Efficient synthetic protocol for substituted guanidines via copper(I)-mediated intermolecular amination of isothiourea derivatives
作者:Hitoshi Ube、Daisuke Uraguchi、Masahiro Terada
DOI:10.1016/j.jorganchem.2006.06.046
日期:2007.1
Amination of S-methyl-N,N′-bis-Boc-isothiourea with either primary or sterically hindered secondary amines promoted by copper(I) chloride and K2CO3 gave N,N′-bis-Boc protected guanidines in good to excellent yields under mild reaction conditions.
用氯化铜(I)和K 2 CO 3促进的伯或空间位阻仲胺对S-甲基-N,N'-双-Boc-异硫脲进行胺化,得到N,N'-双-Boc保护的胍在温和的反应条件下具有优异的收率。