Rhodium(I) complexes of diallyl ethers and related compounds
作者:Ronald Grigg、Boonsong Kongkathip、Trevor J. King
DOI:10.1039/dt9780000333
日期:——
The preparation of a range of stable diallyl ether complexes of RhI by displacement of ethylene from [Rh(C2H4)2(pd)](pd = pentane-2,4-dionate) is described. A number of relatedrhodium(I) complexes of diallylamines, allyl acrylate, diallyl sulphone, and 4,4-diacetylhepta-1,6-diene are also reported. The complexes are characterised by spectroscopic methods, and an X-ray crystal structure of (but-2-enyl
描述了通过从[Rh(C 2 H 4)2(pd)](pd =戊烷-2,4-二酸酯)中置换乙烯来制备一系列稳定的Rh I的二烯丙基醚配合物的方法。还报道了许多相关的二烯丙基胺,丙烯酸烯丙酯,二烯丙基砜和4,4-二乙酰庚基-1,6-二烯的铑(I)配合物。该配合物通过分光光度法进行表征,并且报道了(丁-2-烯基1-甲基烯丙基醚)戊烷-2,4-去离子铑的X射线晶体结构。
Ring‐Closing Olefin Metathesis Catalyzed by Well‐Defined Vanadium Alkylidene Complexes
作者:Dmitry S. Belov、Gabriela Tejeda、Charlene Tsay、Konstantin V. Bukhryakov
DOI:10.1002/chem.202005438
日期:2021.3.8
selectivity in ring‐opening metathesis polymerization of strained cyclic olefins comparable to those of Ru, Mo, and W catalysts. However, the application of V alkylidenes in routine organic synthesis is limited. Here, we present the firstexample of ring‐closing olefin metathesis catalyzed by well‐defined V chloride alkylidene phosphine complexes. The developed catalysts exhibit tolerance to various functional