Understanding Synthetic Peculiarities of Cationic Molybdenum(VI) Imido Alkylidene N‐Heterocyclic Carbene Complexes
作者:Roman Schowner、Wolfgang Frey、Michael R. Buchmeiser
DOI:10.1002/ejic.201900021
日期:2019.4.16
novel synthetic approaches to molybdenum imido alkylidene N‐heterocyclic carbene (NHC) complexes including the first NHC alkylidene complexes featuring pentafluorophenyl‐substituted imido ligands, highly basic 6‐Mes (6‐Mes = 1,3‐dimesityl‐3,4,5,6‐tetrahydropyrimidin‐2‐ylidene) NHC ligands and the preparation of the first representatives of cationic 14‐electron Mo imido alkylidene NHC catalysts bearing
我们报告了一种新的合成方法,用于合成亚氨基钼亚烷基N-杂环卡宾(NHC)配合物,包括首个以五氟苯基取代的亚氨基配体为特征的NHC亚烷基配合物,高度碱性的6-Mes(6-Mes = 1,3-dimesityl-3,4 ,5,6-四氢嘧啶-2-亚丙基)NHC配体和带有空间要求的阴离子三苯醚配体的阳离子14-电子钼亚氨基亚烷基NHC催化剂的首批制备。同样,Mo亚氨基亚烷基和亚烷基NHC双醇盐配合物[Mo(NR)(CHCMe 2 Ph)(NHC)(OR')2 ],[Mo(NH-C 6 F 5)(CCMe 2 Ph)(a IMes) OCMe(CF 3)2 } 2](一IMES = 1,3- dimesitylimidazol -5-亚基,异常Ç 5结合的imidazolylidene)和[沫(NH-2-CF 3 -C 6 H ^ 4)(CCME 2 PH)(6-MES)给出了OCMe(CF 3)2