Synthesis of new unsymmetric N,N′-dipyridylurea derivatives by selenium and selenium dioxide-catalyzed reductive carbonylation of substituted nitropyridines

被引：33

作者：

Chen, JZ ^{[1
]}

Ling, G ^{[1
]}

Lu, SW ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, Natl Engn Res Ctr Catalysis, Dalian 116011, Peoples R China

来源：

TETRAHEDRON | 2003年 / 59卷 / 41期

关键词：

carbonylation; reduction; selenium and compounds; ureas;

D O I：

10.1016/j.tet.2003.08.035

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Without using phosgene, a series of new unsymmetric N,N'-dipyridylurea derivatives have been synthesized in moderate to good yields by the one-pot reductive carbonylation of substituted nitropyridines. These reactions utilize selenium or selenium dioxide as the catalyst, ammopyridine derivatives as co-reagents, and carbon monoxide as the carbonyl source. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：8251 / 8256

页数：6

共 24 条

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[Anonymous], 1997, CATALYTIC REDUCTIVE

[2]

Cicha WV, 1998, CHEM ENG NEWS, V76, P2

[3] Complexation-induced unfolding of heterocyclic ureas. Simple foldamers equilibrate with multiply hydrogen-bonded sheetlike structures [J].