Nitrogen-containing organobases as promoters in the cobalt(II)-Schiff base catalyzed oxidative carbonylation of amines

被引：9

作者：

Saliu, Francesco ^{[1
]}

Putomatti, Benedetto ^{[1
]}

Rindone, Bruno ^{[1
]}

机构：

[1] Univ Milano Bicocca, Dept Environm Sci, I-20126 Milan, Italy

来源：

TETRAHEDRON LETTERS | 2012年 / 53卷 / 28期

关键词：

Cobalt; Oxidative carbonylation; Amines; Organic bases; OXYGEN; COMPLEXES; 2-OXAZOLIDINONES; ACTIVATION; PHENOLS; UREAS; MODEL;

D O I：

10.1016/j.tetlet.2012.05.015

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The use of organic bases as promoters in the cobalt(II)-Schiff base complex catalyzed oxidative carbonylation of amines was investigated. The generality of the reaction was also studied by submitting different amines to the same procedure and by changing the reaction conditions. Very good yields in the corresponding ureas were achieved in toluene with a catalyst loading of 0.5 mol % and using TBD (1,5,7-triazabicyclo[4.4.0]dec-5-ene) as promoter. Methyl carbamates were obtained in methanol. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：3590 / 3593

页数：4

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