Stereoselective Hydrogenation of Aromatic Alkynes Using Water, Triethylsilane, or Methanol, Mediated and Catalyzed by Ni(0) Complexes
作者:Rigoberto Barrios-Francisco、Juventino J. García
DOI:10.1021/ic801823x
日期:2009.1.5
inoethane or 1,2-bis(diterbutylphosphino-ethane) in the presence of water, triethylsilane/water, or methanol as hydrogen sources yields the selective production of E- or Z- aromatic alkenes from the corresponding alkynes. For instance, in the case of diphenylacetylene (dpa) and water, a metal-mediated process was found to yield trans-stilbene stoichiometrically, whereas in the case of triethylsilane/water
使用该类型的复合物的[(PP)的Ni(η 2 - ç,Ç -alkyne)](PP = 1,2-双(二-异丙基-膦基或1,2-双(diterbutylphosphino乙烷)在存在水,三乙基硅烷/水或甲醇作为氢源时,可以从相应的炔烃中选择性生产E-或Z-芳烃,例如,在二苯乙炔(dpa)和水的情况下,金属介导的过程为可以发现化学计量产生反式二苯乙烯,而在三乙基硅烷/水和甲醇的情况下,发现了催化体系(1%mol),催化体系转化为顺式或反式的比例> 95%。二苯乙烯,分别。还评估了芳环上各种取代基的使用。使用D 2 O进行氘标记的研究可以确认水是炔烃还原的氢源。