Synthesis of isocyanates from carbamate esters employing boron trichloride

被引：56

作者：

Butler, DCD ^{[1
]}

Alper, H ^{[1
]}

机构：

[1] Univ Ottawa, Dept Chem, Ottawa, ON K1N 6N5, Canada

来源：

CHEMICAL COMMUNICATIONS | 1998年 / 23期

关键词：

D O I：

10.1039/a807287f

中图分类号：

O6 [化学];

学科分类号：

0703 [化学];

摘要：

The conversion of carbamate esters to isocyanates and diisocyanates of industrial importance is possible using BCl3 in the presence of Et3N; the reaction is simple in execution and work-up, occurring under mild conditions and affording isocyanates in excellent yields.

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收藏

页码：2575 / 2576

页数：2

相关论文

共 17 条

[1]

IODIDE-ION PROMOTION OF BENZYL CHLORIDE BORATE ESTER CARBONYLATION REACTIONS [J].

ALPER, H ;

HAMEL, N ;

SMITH, DJH ;

WOELL, JB .

TETRAHEDRON LETTERS, 1985, 26 (19) :2273-2274

[2]

TRANSITION-METAL-MEDIATED REACTIONS OF ORGANIC ISOCYANATES [J].

BRAUNSTEIN, P ;

NOBEL, D .

CHEMICAL REVIEWS, 1989, 89 (08) :1927-1945

[3]

CENINI S, 1988, ASPECTS HOMOGENEOUS, V6, P97

[4]

PALLADIUM(O) AND RHODIUM(I) CATALYSIS OF THE CARBONYLATION OF UNACTIVATED BROMIDES [J].

HASHEM, KE ;

WOELL, JB ;

ALPER, H .

TETRAHEDRON LETTERS, 1984, 25 (43) :4879-4880

[5]

Kirk-Othmer, 1995, ENCY CHEM TECHNOLOGY, V14, P902

[6]

KIRKOTHMER, 1997, ENCY CHEM TECHNOLOGY, V24, P695

[7]

OXIDATIVE CARBONYLATION OF AMINES CATALYZED BY METALLOMACROCYCLIC COMPOUNDS [J].

LEUNG, TW ;

DOMBEK, BD .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1992, (03) :205-206

[8]

PAQUETTE LA, 1995, ENCY REACTANTS ORGAN, P645

[9]

I-2-promoted palladium-catalyzed carbonylation of amines [J].

PriBar, I ;

Schwartz, J .

JOURNAL OF ORGANIC CHEMISTRY, 1995, 60 (25) :8124-8125

[10]

RILEY D, 1994, ACS SYM SER, V577, P122