Asymmetric preparation of antifungal 1-(4′-chlorophenyl)-1-cyclopropyl methanol and 1-(4′-chlorophenyl)-2-phenylethanol. Study of the detoxification mechanism by Botrytis cinerea
摘要:
Chiral alcohols are important as bioactive compounds or as precursors to such molecules. On the basis of the different antifungal properties of the enantiopure alcohol derivatives of 4'-chlorophenyl cyclopropyl ketone and benzyl 4'-chlorophenyl ketone, their enantioselective synthesis by chemical and biocatalytic methods was studied. The detoxification pathways by the phytopathogen fungus Bonytis cinerea are reported. (C) 2011 Elsevier B.V. All rights reserved.
Copper-dipyridylphosphine-catalyzed hydrosilylation: enantioselective synthesis of aryl- and heteroarylcycloalkyl alcohols
作者:Shan-Bin Qi、Min Li、Shijun Li、Ji-Ning Zhou、Jun-Wen Wu、Feng Yu、Xi-Chang Zhang、Albert S. C. Chan、Jing Wu
DOI:10.1039/c2ob27040d
日期:——
hydrosilylation of a vast array of aryl cycloalkyl ketones with different ring sizes was studied systematically for the first time (up to 99% enantiomeric excess). The results demonstrated that the steric size of cycloalkyl groups has a significant influence on the reaction outcomes. The first stereoselective formation of a selection of cyclohexyl heteroaryl alcohols of up to 97% enantiopurity was realized