A Pd(OAc)2/[mmim]I Catalyst System for Oxidative Carbonylation of Amines to Carbamates, Ureas, and 2-Oxazolidinones

Chinese Journal of Catalysis ›› 2008, Vol. 29 ›› Issue (7): 638-642.

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A Pd(OAc)2/[mmim]I Catalyst System for Oxidative Carbonylation of Amines to Carbamates, Ureas, and 2-Oxazolidinones

PENG Xingao1, LI Fuwei1, HU Xiaoxue1, XIA Chungu1*, Christian A. SANDOVAL2

1 State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, The Chinese Academy of Sciences, Lanzhou 730000, Gansu, China; 2 State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, The Chinese Academy of Sciences, Shanghai 200032, China

Received:2008-07-25 Online:2008-07-25 Published:2012-06-07

Abstract

Abstract: A Pd(OAc)2/[mmim]I ([mmim]I=1-methyl-3-methylimidazolium iodide) catalyst system was applied to the oxidative carbonylation of aliphatic amines, aromatic amines, and amino alcohols to carbamates, ureas, and 2-oxazolidinones under different conditions. The catalytic turnover frequencies (TOF, moles of amines converted per mole of catalyst per hour) were12417,17368, and4114h-1for the production of methyl N-phenyl carbamate, N,N′-diphenyl urea, and 2-benzoxazolinone, respectively.

Key words: palladium, ionic liquid, amine, oxidative carbonylation, carbamate, urea, 2-oxazolidinone

PENG Xingao;LI Fuwei;HU Xiaoxue;XIA Chungu*;Christian A. SANDOVAL. A Pd(OAc)2/[mmim]I Catalyst System for Oxidative Carbonylation of Amines to Carbamates, Ureas, and 2-Oxazolidinones[J]. Chinese Journal of Catalysis, 2008, 29(7): 638-642.

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A Pd(OAc)2/[mmim]I Catalyst System for Oxidative Carbonylation of Amines to Carbamates, Ureas, and 2-Oxazolidinones

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