Convenient synthetic routes to bidentate and monodentate 2-, 3- and 4-pyridyl phosphines: potentially useful ligands for water-soluble complex catalysts
Convenient synthetic routes to bidentate and monodentate 2-, 3- and 4-pyridyl phosphines: potentially useful ligands for water-soluble complex catalysts
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DOI：
10.1016/s0022-328x(97)00722-5
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发表时间：
1998-03-10
影响因子：
2.3
通讯作者：
Sue, RE
中科院分区：
文献类型：
--
作者：
Bowen, RJ;Garner, AC;Sue, RE
单齿和双齿吡啶膦Pr3和R2P(CH2)(2)Pr2，其中R=3-或4-吡啶可通过丁基锂/TMEDA/3-或4-溴吡啶与PCl3或Cl2P(CH2)(2)PCl2在低温下反应而高产率地合成。采用1，2-二溴乙烷与二-2-吡啶基磷化锂反应的替代路线，方便地合成了1，2-二(二-吡啶基膦)乙烷。(C)1998 Elsevier Science S.A.保留所有权利。
The monodentate and bidentate pyridyl phosphines, PR3 and R2P(CH2)(2)PR2, where R = 3- or 4-pyridyl can be prepared in high yields by treatment of butyllithium/TMEDA/3- or 4-bromopyridine with PCl3 or Cl2P(CH2)(2)PCl2 at low temperature. 1,2-Bis(di-2-pyridylphosphino)ethane is conveniently synthesised by an alternative route involving reaction of 1,2-dibromoethane with lithium di-2-pyridylphosphide. (C) 1998 Elsevier Science S.A. All rights reserved.