Conformational studies by dynamic NMR. 71. Stereodynamics of triisopropyl(aryl) silanes in solution and in the solid state

被引：8

作者：

Anderson, JE

Casarini, D

Lunazzi, L

Mazzanti, A

机构：

[1] UCL, Dept Chem, London WC1E 6BT, England

[2] Univ Basilicata, Dept Chem, I-85100 Potenza, Italy

[3] Univ Bologna, Dipartimento Chim Organ A Mangini, I-40136 Bologna, Italy

来源：

JOURNAL OF ORGANIC CHEMISTRY | 2000年 / 65卷 / 06期

关键词：

D O I：

10.1021/jo991580p

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A study has been carried out of the conformations of triisopropyl(aryl)silanes (i-Pr)(3)SiAr, (Ar = phenyl, 1-naphthyl, and 2-naphthyl) both as to the orientation of the three isopropyl groups and the conformation about the silicon-aromatic bonds. The report comprises dynamic NMR studies of conformational interconversions in solution and in the solid state as well as molecular mechanics calculations. The barriers for the stereomutation processes measured in the crystalline state were found significantly higher than those in solution.

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页码：1729 / 1737

页数：9

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