Efficient and selective N-alkylation of carbamates in the presence of Cs2CO3 and TBAI
摘要:
Mild and selective N-alkylation of carbamates was carried our in the presence of cesium carbonate, tetra-butylammonium iodide (TBAI), and a halide. This protocol was highly selective and efficient, offering aliphatic and aromatic N-alkyl carbamates exclusively in high yields. (C) 2001 Published by Elsevier Science Ltd.
Efficient Carbamate Synthesis via a Three-Component Coupling of an Amine, CO<sub>2</sub>, and Alkyl Halides in the Presence of Cs<sub>2</sub>CO<sub>3</sub> and Tetrabutylammonium Iodide
作者:Ralph N. Salvatore、Seung Il Shin、Advait S. Nagle、Kyung Woon Jung