COMPOUNDS OF GERMANIUM AND TIN .10. THERMOLYSIS OF A CYCLOTRISTANNANE - STANNYLENE VERSUS DISTANNENE REACTIONS

被引：48

作者：

WEIDENBRUCH, M ^{[1
]}

SCHAFER, A ^{[1
]}

KILIAN, H ^{[1
]}

POHL, S ^{[1
]}

SAAK, W ^{[1
]}

MARSMANN, H ^{[1
]}

机构：

[1] UNIV GESAMTHSCH PADERBORN,FACHBEREICH CHEM,W-4790 PADERBORN,GERMANY

来源：

CHEMISCHE BERICHTE-RECUEIL | 1992年 / 125卷 / 03期

关键词：

STANNYLENE, BIS(2,4,6-TRIISOPROPYLPHENYL)-; DISTANNENE, TETRAKIS(2,4,6-TRIISOPROPYLPHENYL)-; 1,2-DISTANNACYCLOBUTENE DERIVATIVE;

D O I：

10.1002/cber.19921250306

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Hexakis(2,4,6-triisopropylphenyl)cyclotristannane (1), first described by Masamune and Sita, is easily accessible by treatment of tin(II) chloride with 2,4,6-triisopropylphenylmagnesium bromide. The equilibrium between 1 and its cleavage products bis(2,4,6-triisopropylphenyl)stannylene (2) and tetrakis(2,4,6-triisopropylphenyl)distannene (3) in toluene has been followed by Sn-119-NMR spectroscopy at elevated temperatures. Stannylene 2 can be trapped by open-chain or cyclic diketones as well as by 1,3-dienes. Reaction of 3 with phenylacetylene proceeds in a [2 + 2] fashion to provide the 1,2-distannacyclobutene derivative 5 whose structure was confirmed by X-ray crystallography.

引用

页码：563 / 566

页数：4

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