The meta-carboxylation of arenes containing pyridine and other azine-directing groups is reported. Using carbon tetrabromide as the C1 source, ruthenium(III) trichloride catalysis enables functionalization of the arene meta-C-H position, affording carboxy methyl ester products after in situ reaction with methanol.
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http://dx.doi.org/10.1021/acs.orglett.7b03387 | DOI Listing |
Org Lett
December 2017
School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom.
The meta-carboxylation of arenes containing pyridine and other azine-directing groups is reported. Using carbon tetrabromide as the C1 source, ruthenium(III) trichloride catalysis enables functionalization of the arene meta-C-H position, affording carboxy methyl ester products after in situ reaction with methanol.
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