Heterogeneous CeO 2 catalyst for the one-pot synthesis of organic carbamates from amines, CO 2 and alcohols

Masayoshi Honda, Satoru Sonehara, Hiroshi Yasuda, Yoshinao Nakagawa, Keiichi Tomishige

Research output: Contribution to journalArticlepeer-review

88 Citations (Scopus)

Abstract

Heterogeneous CeO 2 catalyst can catalyze the one-pot synthesis of methyl benzylcarbamate from benzylamine, CO 2 and methanol. The yield of methyl benzylcarbamate reached 92% at >99% benzylamine conversion and 92% benzylamine-based selectivity even in the absence of the dehydrating agents. The catalyst is reusable after the calcination at 873 K for 3 h. Various carbamates can be synthesized with good yield and high selectivity by the reaction of amines + CO 2 + alcohols over CeO 2. The main formation route of methyl benzylcarbamate is suggested to be the reaction of dimethyl carbonate or the precursor of dimethyl carbonate formation with benzylamine.

Original languageEnglish
Pages (from-to)3406-3413
Number of pages8
JournalGreen Chemistry
Volume13
Issue number12
DOIs
Publication statusPublished - 2011 Dec 1

ASJC Scopus subject areas

  • Environmental Chemistry
  • Pollution

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