The cascade carbon-carbon and carbon-nitrogen bond formation between generated carbonyl ylides and azaoxyallyl cations, facilitated by Rh-catalysis and a base, has been achieved to furnish oxa-benzo[]azepin-3-ones. Substrate scope, functional group diversity, scale-up and post-synthetic utilities are the important practical features.
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| http://dx.doi.org/10.1039/d4cc04946b | DOI Listing |
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