Rearrangement of 5-O-prenyl flavones:: a regioselective access to 6-C-(1,1-dimethylallyl)- and 8-C-(3,3-dimethylallyl)-flavones

被引：26

作者：

Daskiewicz, JB ^{[1
]}

Bayet, C ^{[1
]}

Barron, D ^{[1
]}

机构：

[1] Univ Lyon 1, Lab Prod Nat, F-69622 Villeurbanne, France

来源：

TETRAHEDRON LETTERS | 2001年 / 42卷 / 41期

关键词：

D O I：

10.1016/S0040-4039(01)01503-9

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Regioselective control of the Claisen rearrangement of 7-MEM-5-prenyl chrysin was achieved by microwave irradiation. The nature of the products was influenced by the irradiation power and the type of solvent. Irradiation at 750 W in N,N-diethylaniline specifically yielded the 8-(3,3-dimethylallyl) para-rearranged product while refluxing in N,N-diethylbutylamine gave selective access to the 6-(1,1-dimethylallyl) ortho-rearranged compound. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：7241 / 7244

页数：4

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