The reactions of aroylpyruvic acids and their derivatives with o-aminophenyldiphenylmethanol

被引：4

作者：

Kolotova, NV ^{[1
]}

Koz'minykh, VO ^{[1
]}

Dolbilkina, EV ^{[1
]}

Koz'minykh, EN ^{[1
]}

机构：

[1] Perm State Pharmaceut Acad, Perm 614051, Russia

来源：

RUSSIAN CHEMICAL BULLETIN | 1998年 / 47卷 / 11期

关键词：

aroylpyruvic acids; methyl aroylpyruvates, 5-arylfuran-2,3-diones, reactions with o-aminophenyldiphenylmethanol; amides of 4-aryl-2-hydroxy-4-oxobut-2-enoic acid; 4,5-dihydrobenzo[e][1,4]oxazepin-3(1H)-ones, 1,1-diphenyl-1H-benzo[d][1,3]oxazines;

D O I：

10.1007/BF02494290

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Aroylpyruvic acids and their methyl esters react with o-aminophenyldiphenylmethanol to form 4-aryl-2-[2-(1-hydroxydiphenylmethyl)phenylamino]-4-oxobut-2-enoic acids and their esters. The alpha-enamino acids obtained undergo intramolecular heterocyclization in the presence of Ac2O to afford substituted 4,5-dihydrobenzo[e] [1,4]oxazepin-3(1H)-ones. The reaction of 5-arylfuran-2,3-diones with o-aminophenyldiphenylmethanol leads to products of decyclization, 2-(1-hydroxydiphenylmethyl)phenylamides of 4-aryl-2-hydroxy-4-oxobut-2-enoic acid, which upon heating in AcOH or Ac2O yield 3-aroylacetyl-1,1-diphenyl-1H-benzo[d][1,3]oxazines.

引用

页码：2246 / 2248

页数：3

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