Efficient synthesis of 1,3-benzodioxin-4-one and benzoxazine-2,4-diones

被引：11

作者：

Katritzky, Alan R. ^{[1
]}

Singh, Sanjay K. ^{[1
]}

Akhmedova, Rena ^{[1
]}

Cai, Chunming ^{[1
]}

Bobrov, Sergey ^{[1
]}

机构：

[1] Univ Florida, Dept Chem, Ctr Heterocycl Cpds, Gainesville, FL 32611 USA

来源：

ARKIVOC | 2007年

关键词：

benzotriazole; 1,3-benzodioxin-4-ones; benzoxazine-2,4-diones;

D O I：

10.3998/ark.5550190.0008.602

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Reactions of stable N-(o-hydroxyarylacyl) benzotriazoles 4a-c / 6a-c with various aldehydes in the presence of base afforded 1,3-benzodioxin-4-ones 1a-d and naphtho-1,3-dioxinones 7a-c. Reaction with isocyanates under similar conditions afforded high yields of benzoxazine-2,4-diones 2a-c and naphthoxazine-1,3-diones 9a-b.

引用

页码：6 / 13

页数：8

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