Designing P-Chirogenic 1,2-Diphosphinobenzenes at Both P-Centers Using P(III)-Phosphinites
作者:Jérôme Bayardon、Yoann Rousselin、Sylvain Jugé
DOI:10.1021/acs.orglett.6b01275
日期:2016.6.17
synthesis of P-chirogenic 1,2-diphosphinobenzenes (DP*B) bearing the chirality on one or both phosphorus centers is reported using aryne chemistry. The principle is based on successive reactions of 1,2-dibromobenzene with sec-phosphide boranes, then DABCO to remove the borane, and finally with chlorophosphines or P(III)-chirogenic phosphinites. The efficiency of this synthesis was demonstrated by the stereoselective
使用芳烃化学方法报道了一种在一个或两个磷中心具有手性的P-手性1,2-二膦基苯(DP * B)的新对映异构体合成。该原理基于1,2-二溴苯与仲磷硼烷的连续反应,然后由DABCO除去硼烷,最后与氯代膦酸酯或P(III)-色性次膦酸酯反应。通过(S,S)-1,2-双(邻-茴香基苯基膦基)苯的立体选择性制备证明了该合成的效率。报道了在不对称的Rh或Pd催化反应中DIPAMP和同手性DP * B配体的比较。