Highly stereoselective preparation of (3R,4S)-3,4-chromanediol by deracemization of (±)-3-hydroxy-4-chromanone by Trichosporon cutaneum
作者:Inês Lunardi、Gelson J.A. Conceição、Paulo J.S. Moran、J. Augusto R. Rodrigues
DOI:10.1016/j.tetasy.2005.06.020
日期:2005.8
Deracernization of (+/-)-3-hydroxy-4-chrornan one 2 through stercoselective bioreduction to the corresponding (3R,4S)-3,4-chromanediol 3, with good to excellent enantiomeric excesses (LIP to 99%). mediated by resting cells of the yeast Trichosporon cutaneum CCT 1903, is reported. In addition, 3-hydroxychronione (7) was obtained as a secondary product. (c) 2005 Elsevier Ltd. All rights reserved.
KIRKIACHARIAN S.; BRION J.-D.; REYNAUD P., C. R. ACAD. SCI. 1979, C289, NO 7, 227-229
作者:KIRKIACHARIAN S.、 BRION J.-D.、 REYNAUD P.
DOI:——
日期:——
Biotransformation of unsaturated heterocyclic rings by Pseudomonas putida to yield cis-diols
作者:D. R. Boyd、N. D. Sharma、R. Boyle、B. T. McMurray、T. A. Evans、J. F. Malone、H. Dalton、J. Chima、G. N. Sheldrake
DOI:10.1039/c39930000049
日期:——
New cis-diol metabolites of both aromatic and non-aromatic heterocyclic rings have been isolated from growing cultures of a mutant strain of the soil bacterium Pseudomonas putida(UV4) and stereochemically assigned; a novel heterocyclic cis-diol of benzothiophene, 2,3-dihydroxy-2,3-dihydrobenzothiophene is found to exist exclusively in the cis-configuration in water but equilibrates readily with the trans-isomer.