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Letters in Organic Chemistry


ISSN (Print): 1570-1786
ISSN (Online): 1875-6255

Microbial Oxidation of 1,2-Diols Bearing a Substituent with an Oxyfunctional Group: Preparation of Optically Active 1,2-Diols and α-Hydroxy Ketones

Author(s): Kazutsugu Matsumoto, Key Hashimoto, Mari Sakuragi, Ayumi Kusunoki and Masaki Nogawa

Volume 8, Issue 8, 2011

Page: [536 - 539] Pages: 4

DOI: 10.2174/157017811797249362

Price: $65


The preparation of optically active 1,2-diols bearing a substituent with a benzyloxy group at the terminus has been achieved by microbial enantioselective oxidation of the racemic compounds. In the screening test, Ochrobactrum sp. MU2293 was selected as the best strain to perform the enantioselective oxidation of (±)-4-benzyloxybutane-1,2-diol to give the corresponding 4-benzyloxy-1-hydroxybutan-2-one and the remaining (R)-diol with a high ee. This microbial oxidation was applicable to other substrates bearing a substituent with a different carbon number. On the other hand, Bacillus sp. MU2289 catalyzed the oxidation of the 1,2-diols to afford the corresponding α-hydroxy ketones and the (S)-diols as the remaining substrates with the opposite absolute configuration

Keywords: Bacteria, enantioselective oxidation, enzymatic reaction, hydroxy ketones, microorganisms, optically active 1,2-diols, alkoxy groups, dihydroxylation, phosphate, benzyloxy

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