A NOVEL SUBSTITUTION-REACTION BY PHOTOINDUCED ELECTRON-TRANSFER BETWEEN PYRIDINE-DERIVATIVES AND ALKYLTIN COMPOUNDS

被引：14

作者：

MINISCI, F

FONTANA, F

CARONNA, T

ZHAO, L

机构：

[1] Dipartimento di Chimica del Politecnico, 20133 Milano

来源：

TETRAHEDRON LETTERS | 1992年 / 33卷 / 22期

关键词：

D O I：

10.1016/S0040-4039(00)79851-0

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Photolysis of pyridine derivatives in the presence of SnBU4 or Sn2Bu6 leads to butyl derivatives in the alpha and gamma positions. With 2,4-dicyanopyridine ipso-substitution of the cyano groups with the butyl groups exclusively occurs. With 4-cyanopyridine both ipso-substitution and substitution at the 2-position take place. A photo-induced electron-transfer mechanism is suggested.

引用

页码：3201 / 3204

页数：4