1,3-MIGRATION OF CHLORIDE AND AZIDE LIGANDS IN REACTIONS OF HIGHLY STERICALLY HINDERED ORGANOSILICON HALIDES

被引：5

作者：

EABORN, C

LICKISS, PD

NAJIM, ST

机构：

[1] School of Chemistry and Molecular Sciences, University of Sussex, Brighton

[2] Department of Chemistry and Applied Chemistry, University of Salford

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2 | 1993年 / 03期

关键词：

D O I：

10.1039/p29930000391

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Reaction of (Me3Si)2C(SiEt2Cl)(SiMe21), 1, with AgBF4 in CH2Cl2 or Et2O gives a ca. 3:1 mixture of the unrearranged fluoride (Me3Si)2C(SiEt2Cl)(SiMe2F), 2, and the rearranged (Me3Si)2C(SiEt2F) (SiMe2Cl), 3. The reverse 1,3-migration of Cl takes place when (Me3Si)2C(SiMe2Cl) (SiEtI), 4, is treated similarly in CH2Cl2, a ca. 2:1 mixture of 2 and 3 being formed. Reaction of (Me3Si)2C(SiEt2N3)(SiMe2Br), 5, with AgBF, in CH2CI2 likewise gives a ca. 3:1 mixture of (Me3Si)2C(SiEt2N3)(SiMe2F) and (Me3Si)2C(SiEt2F)(SiMe2N3). The preparation of compounds 1, 4 and 5 and of the following (R = SiMe3) are described: R2C(SiMe2Cl)(SiEt2H), R2C(SiEt2Cl)(SiMe2H) and R2C(SiEt2N3)(SiMe2H).

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页码：391 / 394

页数：4

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