Journal
ORGANIC LETTERS
Volume 22, Issue 5, Pages 1852-1857Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.0c00193
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Funding
- SERB New Delhi [EMR/2016/002517]
- DAE
- NISER
- CSIR
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The facile oxidation of alcohols to carboxylate salts and H-2 is achieved using a simple and readily accessible cobalt pincer catalyst ((NNNCoBr2)-Co-HtBu). The reaction follows an acceptorless dehydrogenation pathway and displays good functional group tolerance. The amine-amide metal-ligand cooperation in cobalt catalyst is suggested to facilitate this transformation. The mechanistic studies indicate that in-situ-formed aldehydes react with a base through a Cannizzaro-type pathway, resulting in potassium hemiacetolate, which further undergoes catalytic dehydrogenation to provide the carboxylate salts and H-2.
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