Electrosynthesis of cyclic carbamates from aziridines and carbon dioxide
作者:Patricia Tascedda、Elisabet Duñach
DOI:10.1039/a910285j
日期:——
A new and selective synthesis of five-membered ring cyclic
carbamates involving nickel-catalyzed CO2 incorporation into
aziridines under mild electrochemical conditions was carried out in good
yields.
一种新型选择性合成五元环环状化合物
氨基甲酸酯涉及镍催化的 CO2 掺入
氮丙啶在温和的电化学条件下进行得很好
产量。
Mild and selective ring-cleavage of cyclic carbamates to amino alcohols
作者:Tadao Ishizuka、Takehisa Kunieda
DOI:10.1016/s0040-4039(00)95574-6
日期:——
N-tert-Butoxycarbonylated 2-oxazolidinones and tetrahydro-2-oxazinones are smoothly cleaved to acyclic N-Boc-amino alcohols on treatment with catalytic amounts of cesium carbonate at room temperature. The versatility of the procedure is demonstrated in a facile cleavage of highly functionalized heterocycles without epimerization and β-elimination.