Activation of Polarized Phosphorus–Phosphorus Bonds by Alkynes: Rational Synthesis of Unsymmetrical 1,2-Bisphosphine Ligands and Their Complexes
作者:Sebastian Burck、Imre Hajdók、Martin Nieger、Denis Bubrin、Simon Schulze、Dietrich Gudat、Dietrich Gudat
DOI:10.1515/znb-2009-0109
日期:2009.1.1
1,1-diamino-2,2-diphenyl-substituted diphosphines featuring various degrees of P-P bond polarization with different alkynes were investigated. All diphosphines reacted with alkynes carrying one or two electron withdrawing carboxylic ester moieties under cleavage of the P-P bond and stereospecific phosphinyl-phosphination at the triple bond to give unsymmetrical ethane-1,2- bisphosphines. Several of
研究了具有不同程度 PP 键极化的 1,1-二氨基-2,2-二苯基取代的二膦与不同炔烃的反应。所有二膦都与携带一个或两个吸电子羧酸酯部分的炔烃在 PP 键断裂和三键立体有择膦酰基膦化作用下反应,得到不对称的乙烷-1,2-双膦。几种产物在与第 10 族金属二卤化物反应后进一步转化为螯合物。所有分离的化合物均通过分析和光谱数据进行表征,几种新配体和配合物通过单晶 X 射线衍射研究进行表征。炔烃对极化磷-磷键的图形摘要活化:不对称 1,2-双膦配体及其配合物的合理合成