Halogen exchange reaction of optically pure halotelluranes

被引：0

作者：

Takahashi, S ^{[1
]}

Zhang, J ^{[1
]}

Saito, S ^{[1
]}

Koizumi, T ^{[1
]}

机构：

[1] Toyama Med & Pharmaceut Univ, Fac Pharmaceut Sci, Toyama 93001, Japan

来源：

HETEROCYCLES | 1997年 / 46卷

关键词：

D O I：

暂无

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A series of optically pure chlorotelluranes (2a-c) has been prepared by using the 2-exo-hydroxy-10-bornyl group as a chiral ligand. Fluoro, bromo, and iodotelluranes (1,3, and 4) were also prepared by the halogen exchange reaction of 2 in the presence of NaX, AgX, or tetrabutylammonium halide (TBAX) (X = halogen). The retention of the stereochemistry of chiral tellurium atom was observed throughout the reaction. An S(N)1 pathway was proposed as the mechanism of this halogen exchange reaction.

引用

页码：373 / 384

页数：12

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