Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 141, Issue 33, Pages 13038-13042Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.9b07445
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Funding
- NIGMS [RO1GM109054]
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A rhodium-catalyzed direct insertion of ethylene into a relatively unstrained carbon carbon bond in 1-indanones is reported, which provides a two-carbon ring expansion strategy for preparing seven-membered cyclic ketones. As many 1-indanones are commercially available and ethylene is inexpensive, this strategy simplifies synthesis of benzocycloheptenones that are valuable synthetic intermediates for bioactive compounds but challenging to prepare otherwise. In addition, the reaction is byproduct-free, redox neutral, and tolerant of a wide range of functional groups, which may have implications on unconventional strategic bond disconnections for preparing complex cyclic molecules.
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