<i>trans</i>-Diastereoselective Ru(II)-Catalyzed Asymmetric Transfer Hydrogenation of α-Acetamido Benzocyclic Ketones via Dynamic Kinetic Resolution
作者:Andrej Emanuel Cotman、Matic Lozinšek、Baifan Wang、Michel Stephan、Barbara Mohar
DOI:10.1021/acs.orglett.9b01069
日期:2019.5.17
A highly efficient enantio- and diastereoselective catalyzed asymmetric transfer hydrogenation via dynamic kinetic resolution (DKR–ATH) of α,β-dehydro-α-acetamido and α-acetamido benzocyclic ketones to ent-trans-β-amido alcohols is disclosed employing a new ansa-Ru(II) complex of an enantiomerically pure syn-N,N-ligand, i.e. ent-syn-ULTAM-(CH2)3Ph. DFT calculations of the transition state structures
一个高效对映和非对映选择性通过动态动力学拆分α的(DKR-ATH),β-脱氢-α乙酰氨基和α乙酰氨基benzocyclic酮以催化的不对称转移氢化ENT -反式-β-酰氨基醇,公开了采用新安莎-Ru(II)配合物的对映体纯的顺式- ñ,ñ σ-配体,即,耳鼻喉科-顺-ULTAM-(CH 2)3过渡态结构的Ph.DFT计算显示出非典型的两叉式基质吸引人的稳定化,结合了常见的CH /π静电相互作用和新的O═S═O···HNAc H键,因此有利于反式构型的产物。