Abstract
Microbial hydroxylation of o-bromophenylacetic acid provided 2-bromo-5-hydroxyphenylacetic acid. This enabled a route to the key intermediate 4-bromo-2,3-dihydrobenzofuran for synthesizing a melatonin receptor agonist and sodium hydrogen exchange compounds. Pd-mediated coupling reactions of 4-bromo-2,3-dihydrobenzofuran provided easy access to the 4-substituted-2,3-dihydrobenzofurans.
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Acknowledgments
We thank Dr. M. Futran for his support during the internship period of Mr. Hamish Christie. We also thank R. Hanson, B. Davis, and D. Brzozowski for their microbiological support.
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Deshpande, P.P., Nanduri, V.B., Pullockaran, A. et al. Microbial hydroxylation of o-bromophenylacetic acid: synthesis of 4-substituted-2,3-dihydrobenzofurans. J Ind Microbiol Biotechnol 35, 901–906 (2008). https://doi.org/10.1007/s10295-008-0363-4
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DOI: https://doi.org/10.1007/s10295-008-0363-4