路易斯酸-过渡金属(LA-TM)配合物作为一种新型的双功能催化剂崭露头角.有别于传统的过渡金属双功能催化剂,LA-TM催化剂另辟蹊跷,用路易斯酸功能位点作为电子受体,过渡金属作为电子给体,进行新型的双功能催化.近期,LA-TM配合物迅速发展.依据其键合特点,对硼基LA-TM配合物进行综述,包括sp3杂化、sp2杂化和sp杂化的硼基LA-TM配合物,并归纳了其在LA-TM催化方面的潜在应用,包括H—H/E—H/E—E键活化、氢化、硅氢化和转移脱氢化等等.本综述有望将为开拓LA-TM双功能催化的新领域提供有价值的信息.
Lewis acid-transition metal(LA-TM) complexes, with the LA site functions as an electron acceptor and the TM center functions as an electron donor, have been emerging as a new type of bifunctional catalysts lately, different from traditional transition metal bifunctional catalysts. Due to their rapid developments recently, the boron-based LA-TM complexes, which are divided into three major types, the sp3, sp2, and sp boron-based complexes, are reviewed in this paper according to their binding features. Reactions promoted by this new type of LA-TM bifunctional catalysts have been surveyed, including migration reactions, activation of H — H/E — H/E — E bonds, hydrogenations, hydrosilylations, and transfer dehydrogenation reactions etc. This overview of boron-based LA-TM complexes could provide valuable information to explore the new horizon in LA-TM bifunctional catalysis.