A Fairly Stable Crystalline Silanone

被引：78
作者：
Alvarado-Beltran, Isabel [1 ,2 ]
Rosas-Sanchez, Alfredo [1 ,2 ]
Baceiredo, Antoine [1 ,2 ]
Saffon-Merceron, Nathalie [1 ,3 ]
Branchadell, Vicenc [4 ]
Kato, Tsuyoshi [1 ,2 ]
机构：
[1] Univ Toulouse, UPS, 118 Route Narbonne, F-31062 Toulouse, France
[2] CNRS, LHFA UMR 5069, 118 Route Narbonne, F-31062 Toulouse, France
[3] CNRS, ICT FR2599, 118 Route Narbonne, F-31062 Toulouse, France
[4] Univ Autonoma Barcelona, Dept Quim, Bellaterra 08193, Spain
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2017年 / 56卷 / 35期
基金：
欧洲研究理事会;
关键词：
reactive intermediates; silanone; silicon; silylene; ylides; INTRAMOLECULAR STERIC INTERACTIONS; OXYGEN DOUBLE-BONDS; HETEROCYCLIC SILYLENE; ORGANIC DERIVATIVES; SILICON-COMPOUNDS; ROOM-TEMPERATURE; GAS-PHASE; REACTIVITY; DISILENE; COMPLEX;
D O I：
10.1002/anie.201705644
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Silanones 2 substituted by bulky amino- and phosphonium ylide substituents have been synthesized and isolated in crystalline form. Thanks to the steric protection and the strong electron-donating ability of the substituents, silanones 2 are persistent and only slowly dimerizes at room temperature(t(1/2) = 0.5 or 5 h). Structural and theoretical analysis of 2 indicate a short Si=0 bond (1.533 angstrom) and an enhanced polarization toward the 0 atom compared to Me2Si=0 owing to the strong pi-electron donation from the phosphonium ylide substituent.
引用
收藏
页码：10481 / 10485
页数：5
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