Elsevier

Phytochemistry

Volume 13, Issue 1, January 1974, Pages 65-68
Phytochemistry

Species-strain dependence of stereoselectivity in microbial oxidation of thioethers

https://doi.org/10.1016/S0031-9422(00)91268-8Get rights and content

Abstract

The stereoselectivity in the aerobic, microbial oxidation of thioethers and sulphoxides is shown to be dependent on species and strain. A strain of Aspergillus niger was used to obtain an optically active dialkyl sulphoxide.

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  • Aspergillus genus as a source of new catalysts for sulfide oxidation

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    At the best of our knowledge, only a few previous works have been reported dealing with Aspergillus capability to oxidize prochiral sulfides. In the 60–70s, Auret's group studied the fungal oxidation of diaryl and aryl alkyl sulfides employing mainly A. niger with certain success albeit the enantiomeric excesses (ees) and optical rotation signs resulted rather variable and substrate over-oxidation (sulfone formation) was always detected [14,22–24]. More recently, it has been studied the possibility of performing sulfoxidations using A. terreus [25,26].

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