Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 133, Issue 5, Pages 1251-1253Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja109097z
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Funding
- Ministry of Education, Culture, Sports, Science, and Technology of Japan [22105006, 21245024, 20200049]
- Grants-in-Aid for Scientific Research [22105006, 20200049, 21245024] Funding Source: KAKEN
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Rh-catalyzed direct carboxylation of unactivated aryl C-H bond under atmospheric pressure of carbon dioxide was realized via chelation-assisted C-H activation for the first time. Variously substituted and functionalized 2-arylpyridines and 1-arylpyrazoles underwent the carboxylation in the presence of the rhodium catalyst and a stoichiometric methylating reagent, AlMe2(OMe), to give carboxylated products in good yields. The catalysis is proposed to consist of methylrhodium(I) species as the key intermediate, which undergoes C-H activation to afford rhodium(III), followed by reductive elimination of methane to give nucleophilic arylrhodium(I). This approach demonstrates promising application of C-H bond activation strategy in the field of carbon dioxide fixation.
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