Reactions of alkylidenephosphoranes with symmetrically substituted p-quinones

被引：10

作者：

Abdou, WM ^{[1
]}

Salem, MAE ^{[1
]}

Sediek, AA ^{[1
]}

机构：

[1] AIN SHAMS UNIV,DEPT CHEM,CAIRO,EGYPT

来源：

TETRAHEDRON | 1997年 / 53卷 / 40期

关键词：

D O I：

10.1016/S0040-4020(97)00905-8

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The reaction of p-quinone 1 with ylides 2a and 2b afforded the corresponding phosphonium salts 8a,b, p-quinone-dimethanides 4a,b(Z) and 5a,b(E); substituted phenols 7a,b(Z and E) and coumarin-derivative II (only with 2a). The reaction of 1 with ylide 2c gave, besides 4c, 5c and 8c, hydroquinone[1]cyclobutene 16 and the Diels-Alder product 17. Reactions of 1 with 2d and 3 (salts) in the presence of sodium alkoxide yielded through preferred attack on the nitrile function, azo-22 and bisimino-24 compounds, respectively. (C) 1997 Published by Elsevier Science Ltd.

引用

页码：13945 / 13958

页数：14

共 31 条

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