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This protocol is characterized by wide substrate scope utilizing cheap cobalt catalysts, and offers a new approach to 3\u2010methyleneisoindolin\u20101\u2010one, which can be converted into an oxadiazine salt in one step. Moreover, the directing group could be removed in three steps.<\/jats:p>","DOI":"10.1002\/anie.201504962","type":"journal-article","created":{"date-parts":[[2015,7,15]],"date-time":"2015-07-15T17:05:16Z","timestamp":1436979916000},"page":"10012-10015","source":"Crossref","is-referenced-by-count":175,"title":["Cobalt(II)\u2010Catalyzed C\uf8ffH Alkynylation\/Annulation with Terminal Alkynes: Selective Access to 3\u2010Methyleneisoindolin\u20101\u2010one"],"prefix":"10.1002","volume":"54","author":[{"given":"Lin\u2010Bao","family":"Zhang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xin\u2010Qi","family":"Hao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhan\u2010Jiang","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xin\u2010Xiang","family":"Zheng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shou\u2010Kun","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jun\u2010Long","family":"Niu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mao\u2010Ping","family":"Song","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2015,7,15]]},"reference":[{"key":"e_1_2_2_1_2","unstructured":"For selected reviews see:"},{"key":"e_1_2_2_2_2","doi-asserted-by":"publisher","DOI":"10.1021\/jo400159y"},{"key":"e_1_2_2_3_2","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201201666"},{"key":"e_1_2_2_3_3","doi-asserted-by":"publisher","DOI":"10.1002\/ange.201201666"},{"key":"e_1_2_2_4_2","doi-asserted-by":"publisher","DOI":"10.1021\/cr100412j"},{"key":"e_1_2_2_5_2","doi-asserted-by":"publisher","DOI":"10.1039\/c2cs35096c"},{"key":"e_1_2_2_6_2","unstructured":"For selected reviews see:"},{"key":"e_1_2_2_7_2","doi-asserted-by":"publisher","DOI":"10.1039\/c2cs15281a"},{"key":"e_1_2_2_8_2","first-page":"31","volume":"45","author":"Patureau F. 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