Toluene Dioxygenase-Mediated Oxidation of Bromo(methylsulfanyl)benzenes. Absolute Configuration of Metabolites and Evaluation of Chemo- and Regioselectivity Trends
Toluene Dioxygenase-Mediated Oxidation of Bromo(methylsulfanyl)benzenes. Absolute Configuration of Metabolites and Evaluation of Chemo- and Regioselectivity Trends
Enzyme-Catalysed Synthesis and Absolute Configuration Assignments ofcis-Dihydrodiol Metabolites from 1,4-Disubstituted Benzenes
作者:Derek R. Boyd、Narain D. Sharma、Gerard P. Coen、Peter J. Gray、John F. Malone、Jacek Gawronski
DOI:10.1002/chem.200601852
日期:2007.7.6
using stereochemical correlation and X-ray crystallography and the remainder have been tentatively assigned using NMR spectroscopic methods but finally confirmed by circulardichroism (CD) spectroscopy. These configurational assignments support and extend the validity of an empirical model, previously used to predict the preferred stereochemistry of TDO-catalysed cis-dihydroxylation of ten 1,4-disubstituted
Enzymatic oxidation of thioanisoles: isolation and absolute configuration of metabolites
作者:Kevin J. Finn、Petr Cankař、Timothy R.B. Jones、Tomas Hudlicky
DOI:10.1016/j.tetasy.2004.06.050
日期:2004.9
Oxidation of p-bromothioanisole with toluene dioxygenase provides the corresponding diene diol 2 in good yield. Electrochemical reduction of 2 gives access to diene diol 3, which is not accessible by direct bio-oxidation of thioanisole. Absolute configuration and enantiomeric purity are reported for the new metabolites. (C) 2004 Elsevier Ltd. All rights reserved.