PHOTOINDUCED ELECTRON-TRANSFER REACTIONS OF FLAVONE WITH AMINES - THE SYNTHESES OF 2,4'-BIFLAVANOIDS AND 2,2'-BIFLAVANOIDS

被引：14

作者：

CHEN, CF

ZHU, Y

LIU, YC

XU, JH

机构：

[1] NANJING UNIV,DEPT CHEM,NANJING 210093,PEOPLES R CHINA

[2] LANZHOU UNIV,NATL LAB APPL CHEM,LANZHOU 730000,PEOPLES R CHINA

来源：

TETRAHEDRON LETTERS | 1995年 / 36卷 / 16期

关键词：

D O I：

10.1016/0040-4039(95)00414-8

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Photoinduced electron transfer reactions of flavone (FL) with triethylamine (TEA) in benzene or in acetonitrile gave meso- 2,2'-biflavone 1 and (+/-)-2,2'-biflavone 2, as well as 2,4'-biflavanoid 3 in good total yield (77% in acetonitrile and 94% in benzene). Solvent polarity effect on product distributions and spin trapping ESR studies of the a-aminoalkyl radicals [CH(3)CHNEt(2) and CH2N(CH3)Ph] further supported the SET mechanism.

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页码：2835 / 2838

页数：4

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