CYCLOADDITION REACTIONS OF ISOCYANATES . REACTION OF ARYL ISOCYANATES WITH N,N-DIMETHYLFORMAMIDE

被引:28
作者
ULRICH, H
TUCKER, B
STUBER, FA
SAYIGH, AAR
机构
[1] Donald S. Gilmore Research Laboratories, Upjohn Company, North Haven
关键词
D O I
10.1021/jo01274a050
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Heating aryl isocyanates in N,N-dimethylformamide produces the previously unreported pentaaryl-1,3,6,8,10-pentazaspiro [4.5] decane-2,4,7,9-tetraones 4. The formation of 4 involves N-aryl-N′-dimethylformamidines 1 as well as the 2:1 cycloadducts 2 of aryl isocyanates and 1 as intermediates. © 1968, American Chemical Society. All rights reserved.
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页码:3928 / &
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