Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 21, Issue 11, Pages 4242-4246Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201405712
Keywords
benzo/[7+1]; benzocyclobutene; carbonylation; eight-membered ring; rhodium
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Funding
- Natural Science Foundation of China [21232001]
- National Basic Research Program of China-973 Program [2011CB808600]
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A Rh-catalyzed benzo/[7+1] cycloaddition of cyclopropyl-benzocyclobutenes (CP-BCBs) and CO to benzocyclooctenones has been developed. In this reaction, CPBCB acts as a benzo/7-C synthon and the reaction involves two C-C bond cleavages: a thermal electrocyclic ring-opening of the four-membered ring in CP-BCB and a Rh-catalyzed C-C cleavage of the cyclopropane ring.
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