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An Improved Synthesis of Me4PCP and DMPE
Organometallics ( IF 2.5 ) Pub Date : 2018-01-04 00:00:00 , DOI: 10.1021/acs.organomet.7b00780
Travis T. Lekich 1 , Phoebe G. Askelson 1 , Ryan K. Burdick 1 , D. Michael Heinekey 1
Affiliation  

We present a new synthetic method for the bis(dimethyl)phosphines Me4PCP (C6H4-2,6-(CH2P(CH3)2)2) and DMPE ((CH3)2PCH2CH2P(CH3)2) that starts from an aminophosphine, Et2NPMe2. Two equivalents of Et2NPMe2 react with the corresponding bis(alkyl bromide) to afford an oxygen- and moisture-stable aminophosphonium salt. NaAlH4 selectively reduces the aminophosphonium salt to the desired phosphine. Each step is high yielding and requires minimal purification.

中文翻译:

Me4 PCP和DMPE的改进合成

我们提出了一种新的合成方法,用于双(二甲基)膦Me4 PCP(C 6 H 4 -2,6-(CH 2 P(CH 322)和DMPE((CH 32 PCH 2 CH 2 P (CH 32)从氨基膦Et 2 NPMe 2开始。两当量的Et 2 NPMe 2与相应的双(烷基溴)反应,制得氧和湿气稳定的氨基phosph盐。NaAlH 4选择性地将氨基phosph盐还原为所需的膦。每个步骤产量高,需要最少的纯化。
更新日期:2018-01-05
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