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The reaction is enabled by a strongly \u03c3\u2010donating NHC ligand and a carefully modified temporary directing group. A wide range of functional groups is tolerated, and the method provides straightforward access to diverse benzocycloheptenones that are hard to access otherwise. DFT studies of the reaction mechanism imply the migration insertion as the turnover\u2010limiting step and suggest beneficial \u03c0\u2013\u03c0 interactions in the transition states.<\/jats:p>","DOI":"10.1002\/anie.202106007","type":"journal-article","created":{"date-parts":[[2021,7,2]],"date-time":"2021-07-02T22:01:40Z","timestamp":1625263300000},"page":"20476-20482","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":44,"title":["Intermolecular [5+2] Annulation between 1\u2010Indanones and Internal Alkynes by Rhodium\u2010Catalyzed C\u2013C Activation"],"prefix":"10.1002","volume":"60","author":[{"given":"Rui","family":"Zhang","sequence":"first","affiliation":[{"name":"Department of Chemistry The University of Chicago  5735 S Ellis Ave Chicago IL 60637 USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ying","family":"Xia","sequence":"additional","affiliation":[{"name":"Department of Chemistry The University of Chicago  5735 S Ellis Ave Chicago IL 60637 USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1331-6015","authenticated-orcid":false,"given":"Guangbin","family":"Dong","sequence":"additional","affiliation":[{"name":"Department of Chemistry The University of Chicago  5735 S Ellis Ave Chicago IL 60637 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