The two modes of the paths in the reaction of oxiranes with phenols are completely controlled by CsF. Glycidyl nosylate undergoes exclusive substitution at the C-1 position whereas the ring-opening (C-3 attack) occurs with epichlorohydrin, glycidol, and 1,2-epoxyalkanes. These reactions provide convenient access to enantiopure beta-blockers. (C) 1999 Elsevier Science Ltd. All rights reserved.
Design and Evaluation of New Quinazolin-4(3<i>H</i>)-one Derived PqsR Antagonists as Quorum Sensing Quenchers in <i>Pseudomonas aeruginosa</i>
作者:Fadi Soukarieh、Alaa Mashabi、William Richardson、Eduard Vico Oton、Manuel Romero、Shaun N. Roberston、Scott Grossman、Tomas Sou、Ruiling Liu、Nigel Halliday、Irena Kukavica-Ibrulj、Roger C. Levesque、Christel A. S. Bergstrom、Barrie Kellam、Jonas Emsley、Stephan Heeb、Paul Williams、Michael J. Stocks、Miguel Cámara
DOI:10.1021/acsinfecdis.1c00175
日期:2021.9.10
Enantioselective Synthesis ofβ-Blockersvia Hydrolytic Kinetic Resolution of Terminal Oxiranes by Using Bimetallic Chiral {{2,2′-[Cyclohexane-1,2-diylbis(nitrilomethylidyne)]bis[phenolato]}(2−)}cobalt ([Co(salen)])-Type Complexes
作者:Rahul B. Kawthekar、Geon-Joong Kim
DOI:10.1002/hlca.200890037
日期:2008.2
The synthesis of chirally pure β-blockers was successfully achieved via hydrolytickineticresolution of butyl (±)-4-(oxiran-2-ylmethoxy)benzeneacetate ((±)-1) and (±)-4-(oxiran-2-ylmethoxy)benzeneacetonitrile ((±)-2) in the presence of bimetallicchiral [Co(salen)]-typecomplexes. The newly synthesized bimetallicchiral [Co(salen)]-typecomplexes exhibited excellent enantioselectivities of up to >98%