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10.6.4.2.3.1 Method 1: Decarboxylation

DOI: 10.1055/sos-SD-010-00275

Andrews, M. D.Science of Synthesis, (200110255.

The acid groups of dibenzothiophenecarboxylic acids can be replaced by hydrogen by heating with copper powder in quinoline at reflux. For example, the acids 164 are decarboxylated in this fashion to give the methylated benzonaphthothiophenes 165 in moderate yield (Scheme 53).[‌181‌]

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