A study on the optical resolution of 1-isopropyl-3-methyl-3-phospholene 1-oxide and its use in the synthesis of borane and platinum complexes
作者:Péter Bagi、Kinga Juhász、István Timári、Katalin E. Kövér、Dávid Mester、Mihály Kállay、Miklós Kubinyi、Tibor Szilvási、Péter Pongrácz、László Kollár、Konstantin Karaghiosoff、Mátyás Czugler、László Drahos、Elemér Fogassy、György Keglevich
DOI:10.1016/j.jorganchem.2015.08.013
日期:2015.11
semiempirical calculations. Beside X-ray analysis, the absolute configuration of the P-stereogenic center was also determined on the basis of CD spectroscopy and high level quantum chemical calculations. The racemic and optically active 1-isopropyl-3-phospholenes obtained after deoxygenation were converted to the corresponding borane complexes and Pt(II) complexes. Stereostructure of the latter species was evaluated
制备了1一异丙基-3-膦1氧化物,并使用旋光活性TADDOL衍生物或(-)- O,O-二酰基-(2 R的酸性Ca 2+盐)通过拆分从外消旋物中分离了两种对映异构体3 R)-酒石酸。1-异丙基-3-环氧丙烷-螺-TADDOL 1:2缔合物的单晶X射线结构揭示了主体与来宾分子之间的结合方式。这三个分子之间相互作用的作用不仅受到接触数据的支持,而且还受到力场和半经验计算的支持。除X射线分析外,还基于CD光谱和高水平量子化学计算来确定P-立体异构中心的绝对构型。脱氧后得到的外消旋和旋光的1-异丙基-3-膦烯被转化为相应的硼烷配合物和Pt(II)配合物。通过高水平量子化学计算评估了后者的立体结构,并测试了Pt配合物作为苯乙烯加氢甲酰化反应的催化剂。