Reactions of a carbosilylated methylenephosphonium ion with pi-conjugated hydrocarbons

被引：12

作者：

Thomaier, J ^{[1
]}

Alcaraz, G ^{[1
]}

Grutzmacher, H ^{[1
]}

Hillebrecht, H ^{[1
]}

Marchand, C ^{[1
]}

Heim, U ^{[1
]}

机构：

[1] ETH ZURICH,ANORGAN CHEM LAB,CH-8092 ZURICH,SWITZERLAND

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1997年 / 535卷 / 1-2期

关键词：

methylenephosphonium salts; aluminium compounds; cycloadditions; phosphonium salts;

D O I：

10.1016/S0022-328X(96)06960-4

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In the C-silylated methylenephosphonium salt [(Bu2P)-Bu-t=CHSiMe3](+) AlCl4- (6) cation and anion are separated in the solid state and in solution. Adding an excess of AlCl3, however, does not allow the synthesis of the methylenephosphonium salt 6' with Al2Cl7- as counteranion but leads to the adduct (Bu2PCl)-Bu-t-CHSiMe3 . Al2Cl6 (7) which was characterized by an X-ray analysis. Electron-rich pi-conjugated hydrocarbons Like fulvene 9 or anthracene 10 react with 6 (or 7) under formation of [2+4]-cycloadducts 11a,b and 12, respectively, while electron-poor systems (benzene, naphthalene, C-60) are unreactive. (C) 1997 Elsevier Science S.A.

引用

页码：91 / 97

页数：7

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