TRANSFORMATION OF ALKYNYLPHOSPHINE OXIDES AND ALKYNYLPHOSPHONIUM CATIONS TO 2-ALKYLIDENE-1,2-DIHYDRO-3-PHOSPHETE LIGANDS BY PT-H ADDITION AND REARRANGEMENT REACTIONS

被引：13

作者：

DEMA, AC ^{[1
]}

LI, XH ^{[1
]}

LUKEHART, CM ^{[1
]}

OWEN, MD ^{[1
]}

机构：

[1] VANDERBILT UNIV,DEPT CHEM,NASHVILLE,TN 37235

来源：

ORGANOMETALLICS | 1991年 / 10卷 / 04期

关键词：

D O I：

10.1021/om00050a063

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reactions of [trans-Pt(H)(PEt3)2(THF)]+ with several di- or trialkynylphosphine oxides or phosphonium cations are reported. Regioselective addition of the Pt-H bond to one of the alkynyl substituents of the substrate O = P(C = CMe)3 or [Me2P(C = CCMe3)2]+ occurs to give Pt,P-mu-alkenylidene complexes. A similar addition to the substrates O = P(C = CCMe3)2R, where R is Ph or Me, or to [MeP(C = CCMe3)3]+ occurs with a subsequent insertion of a second alkynyl substituent to form 2-alkylidene-1,2-dihydrophosphete ligands. A reaction using [Me)(Ph)P(C = CCMe3)2]+ as substrate affords both Pt,P-mu-alkenylidene and heterocyclic products.

引用

页码：1197 / 1200

页数：4

共 23 条

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