A combined system of a RuCl2(binap)(1,4-diamine) complex and t-C4H9OK in i-C3H7OH catalyzes enantioselective hydrogenation of various 1-tetralone derivatives and some methylated 2-cyclohexenones. Hydrogenation of 2-methyl-1-tetralone under dynamic kinetic resolution gives the cis alcohol with high ee.
Begue, Jean-Pierre; Cerceau, Claude; Dogbeavou, Anukwadey, Journal of the Chemical Society. Perkin transactions I, 1992, # 22, p. 3141 - 3144
Iridium/f-Amphol-catalyzed Efficient Asymmetric Hydrogenation of Benzo-fused Cyclic Ketones
作者:Congcong Yin、Xiu-Qin Dong、Xumu Zhang
DOI:10.1002/adsc.201800839
日期:2018.11.16
Iridium/f‐Amphol‐catalyzedasymmetrichydrogenation of various benzo‐fused five to seven‐membered cyclic ketones was successfully developed, affording a series of chiral benzo‐fused cyclic alcohols with excellent results (75%–99% yields, 93%–>99% ee, and TON up to 297 000). The enantioenriched products can be employed as key intermediates or motifs for the synthesis of some important biologically active