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Particularly, they have been widely utilized as a donor\/acceptor carbene complex in a range of transformations leading to diverse nitrogen containing compounds and heterocycles. Along the same direction, 3\u2010diazoindolin\u20102\u2010imines were successfully applied as an alternative source of <jats:italic>\u03b1<\/jats:italic>\u2010imino carbenoid precursors for the development of a number of methodologies to access diverse indole derivatives. This review summarizes the insertion reactions of <jats:italic>\u03b1<\/jats:italic>\u2010imino metal carbenes derived from <jats:italic>N<\/jats:italic>\u2010sulfonyl\u20101,2,3\u2010triazoles and 3\u2010diazoindolin\u20102\u2010imines.<\/jats:p>","DOI":"10.1002\/tcr.202100238","type":"journal-article","created":{"date-parts":[[2021,11,18]],"date-time":"2021-11-18T05:12:53Z","timestamp":1637212373000},"page":"4032-4058","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":31,"title":["Catalytic Insertion Reactions of \u03b1\u2010Imino Carbenoids"],"prefix":"10.1002","volume":"21","author":[{"given":"Kuntal","family":"Pal","sequence":"first","affiliation":[{"name":"Department of Chemistry Indian Institute of Technology Bombay  Powai Mumbai 400076 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8497-1538","authenticated-orcid":false,"given":"Chandra M. 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