Hydrostannylation of Ketones and Alkynes with LSnH [L = HC(CMeNAr)2, Ar=2,6-iPr2C6H3]

被引：29
|
作者：
Jana, Anukul [1 ]
Roesky, Herbert W. [1 ]
Schulzke, Carola [2 ]
机构：
[1] Univ Gottingen, Inst Anorgan Chem, D-37077 Gottingen, Germany
[2] Trinity Coll Dublin, Sch Chem, Dublin 2, Ireland
来源：
INORGANIC CHEMISTRY | 2009年 / 48卷 / 19期
关键词：
HYDRIDE COMPLEXES; MATRIX-ISOLATION; TIN; REACTIVITY; CHEMISTRY; GERMANIUM; SILICON; METALS; REDUCTION; MOLECULES;
D O I：
10.1021/ic9012069
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The reactions of the stable beta-diketiminate tin(II) hydride LSnH [L = HC(CMeNAr)(2), Ar = 2,6-iPr(2)C(6)H(3)] with different ketones (Ph2CO, 2-Py2CO, cyPr(2)CO, and 2-C4H3SCOCF3) generated a variety of tin(II) alkoxides (1-4) in high yield. The activated terminal alkynes (HC CCO2R, R = Me, Et) react with LSnH to yield the tin(II) substituted terminal alkenes (5-6) instead of dihydrogen elimination although the Sn-H and C-H bonds are differently polarized. Furthermore, LSnH reacts with disubstituted alkyne (RO2CC=CCO2R, R = Et, tBu) in toluene at room temperature to form the stannylene substituted internal alkenes (7-8). Compounds 1-8 were characterized by microanalysis and multinuclear NMR spectroscopy. Moreover compounds 3, 4, 5, and 7 were characterized by X-ray crystallography, and the resulting structures confirmed the monomeric nature, in which the tin centers reside in a trigonal-pyramidal environment.
引用
收藏
页码：9543 / 9548
页数：6
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