Toluene Dioxygenase Catalysed synthesis and reactions of cis-diol metabolites derived from 2 and 3-methoxy phenols

Derek R. Boyd*, Narain D. Sharma, John F. Malone, Peter B. A. McIntyre, Colin McRoberts, Stewart Floyd, Christopher C. R. Allen, Amit Gohil, Simon J. Coles, Peter N. Horton, Paul J. Stevenson

*Corresponding author for this work

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Using toluene dioxygenase as biocatalyst, enantiopure cisdihydrodiol and cis-tetrahydrodiol metabolites, isolated as their ketone tautomers, were obtained from meta and ortho methoxyphenols. Although these isomeric phenol substrates are structurally similar, the major bioproducts from each of these biotransformations were found at different oxidation levels. The relatively stable cyclohexenone cis-diol metabolite from meta methoxyphenol was isolated, while the corresponding metabolite from ortho methoxyphenol was rapidly bioreduced to a cyclohexanone cis-diol. The chemistry of the 3-methoxycyclohexenone cis-diol product was investigated and elimination, aromatization, hydrogenation, regioselective O-exchange, Stork−Danheiser transposition and O-methylation reactions were observed. An offshoot of this technology provided a two-step chemoenzymatic synthesis, from meta methoxyphenol, of a recently reported chiral fungal metabolite; this synthesis also established the previously unassigned absolute configuration.
Original languageEnglish
Pages (from-to)3429-3429
Number of pages11
JournalJournal of Organic Chemistry
Volume80
Issue number7
Early online date10 Mar 2015
DOIs
Publication statusPublished - 2015

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    Boyd, D. R., Sharma, N. D., Malone, J. F., McIntyre, P. B. A., McRoberts, C., Floyd, S., Allen, C. C. R., Gohil, A., Coles, S. J., Horton, P. N., & Stevenson, P. J. (2015). Toluene Dioxygenase Catalysed synthesis and reactions of cis-diol metabolites derived from 2 and 3-methoxy phenols. Journal of Organic Chemistry, 80(7), 3429-3429. https://doi.org/10.1021/jo5028968