A convenient synthesis of 2H-1,4-benzoxazines, 3H-indol-3-ones, and 2,3-dihydrobenzoxazoles

被引：11
作者：
Abdou, WM
Salem, MAI
Sediek, AA
机构：
[1] Natl Res Ctr, Dept Pesticide Chem, Cairo, Egypt
[2] Ain Shams Univ, Fac Sci, Dept Chem, Cairo, Egypt
来源：
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 2002年 / 75卷 / 11期
关键词：
D O I：
10.1246/bcsj.75.2481
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
3,5-Di-tert-butyl-1,2-benzoquinone 1-oxime (1b) reacted with ester ylides 2a,b to give the corresponding 2H-1,4-benzoxazin-2-ones 9a,b along with the 3H-indol-3-one 11, whereas with keto ylides 12a,b, 2,3-dihydrobenzoxazoles 13a,b were isolated. Conversely, the reaction of 1b with moderated phosphonium salt 15 proceeded under phase-transfer catalysis conditions to afford the 2H-1,4-benzoxazine derivative 19, instead of the expected Wittig reaction product.
引用
收藏
页码：2481 / 2485
页数：5
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