Solvent dependent Bergman cyclization of 2,3-diethynylquinoxaline

被引：25

作者：

Kim, CS ^{[1
]}

Russell, KC ^{[1
]}

机构：

[1] Univ Miami, Dept Chem, Coral Gables, FL 33124 USA

来源：

TETRAHEDRON LETTERS | 1999年 / 40卷 / 20期

关键词：

D O I：

10.1016/S0040-4039(99)00634-6

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Kinetics of thermocyclization of 2,3-diethynylquinoxaline have been studied in various solvents. The cyclization rates observed were surprisingly solvent dependent. The half-lives varied from 361 in CH3CN to 16 min in THF. The half-life data show a good correlation with the solvents' spectroscopic E-T(30) values and dielectric constants. (C) 1999 Elsevier Science Ltd. All rights reserved.

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页码：3835 / 3838

页数：4

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