From the parent phosphinidene-carbene adduct NHC=PH to cationic P4-rings and P2-cycloaddition products

被引：37

作者：

Beil, Andreas ^{[1
]}

Gilliard, Robert J., Jr. ^{[1
]}

Gruetzmacher, Hansjoerg ^{[1
]}

机构：

[1] ETH, Inorgan Chem Lab, Vladimir Prelog Weg 1, CH-8093 Zurich, Switzerland

来源：

DALTON TRANSACTIONS | 2016年 / 45卷 / 05期

关键词：

TEMPERATURE ISOLATION; DIPHOSPHENES; FRAMEWORKS; CHEMISTRY; ROUTE; COMPOUND; PAIR;

D O I：

10.1039/c5dt03014e

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reactions of the parent phosphinidene-carbene adduct (NHC)-N-Dipp-PH with chlorophosphanes are reported herein. The obtained (NHC)-N-Dipp-substituted chlorodiphosphanes, (NHC)-N-Dipp=P-PClR, and the formation of their cationic derivatives, [(NHC)-N-Dipp-PvPR](+), were also explored. Depending on the steric demand of their substituents, these cations were found to be monomeric [(NHC)-N-Dipp-PP-(NPr2)-Pr-i][GaCl4] or to dimerise to cyclotetraphosphanes [(NHC)-N-Dipp-PP-R](2)[GaCl4](2) (R = Ph, NMe2). For R = NMe2, this dication is the first isolated example of a tetrasubstituted all-sigma(3) cyclotetraphosphane. Finally, the hetero-Diels-Alder reactivity of these cations was studied with 2,3-dimethylbuta-1,3-diene and cyclopentadiene, resulting in the isolation of a number of cationic 1,2-diphosphinanes.

引用

页码：2044 / 2052

页数：9

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