A role for free phosphinidenes in the reaction of magnesium and sterically encumbered ArPCl2 in solution at room temperature

被引:39
作者
Smith, RC [1 ]
Shah, S [1 ]
Protasiewicz, JD [1 ]
机构
[1] Case Western Reserve Univ, Dept Chem, Cleveland, OH 44106 USA
基金
美国国家科学基金会;
关键词
phosphorus; phosphinidene; cyclometallation; diphosphene; magnesium; meta-terphenyl;
D O I
10.1016/S0022-328X(01)01384-5
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The reduction of ArPCl2 (Ar = 2,6-Trip(2)C(6)H(3), 2,6-Mes(2)C(6)H(3), 2,6-(2,6-Me2C6H3)(2)C6H3, or 2,4,6-(Bu3C6H3)-Bu-t) by various forms of activated magnesium have been examined and compared with previously reported reductions using unactivated magnesium. The current reactions are more rapid and give rise to products that are reminiscent of products obtained by irradiation of phosphanylidene-sigma(4)-phosphoranes ArP-PMe3 bearing the same Ar groups. The correlation in product distributions suggests the involvement of phosphinidenes in the reduction of aryldichlorophosphines by activated magnesium. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:255 / 261
页数:7
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