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The combination of ethyl 2\u2010bromo\u20102,2\u2010difluoroacetate, alkynes, and DABCO\u22c5(SO<jats:sub>2<\/jats:sub>)<jats:sub>2<\/jats:sub> with hydrazines, catalyzed by 9\u2010mes\u201010\u2010methyl acridinium perchlorate in the presence of visible light, afforded (<jats:italic>E<\/jats:italic>)\u2010ethyl 2,2\u2010difluoro\u20104\u2010aryl\u20104\u2010sulfamoylbut\u20103\u2010enoates in good yields with high stereoselectivity. This four\u2010component reaction proceeds through radical addition with the insertion of sulfur dioxide.<\/jats:p>","DOI":"10.1002\/chem.201605336","type":"journal-article","created":{"date-parts":[[2016,11,29]],"date-time":"2016-11-29T23:58:14Z","timestamp":1480463894000},"page":"1032-1035","source":"Crossref","is-referenced-by-count":94,"title":["Vicinal Difluoroalkylation and Aminosulfonylation of Alkynes under Photoinduced Conditions"],"prefix":"10.1002","volume":"23","author":[{"given":"Yuanchao","family":"Xiang","sequence":"first","affiliation":[{"name":"Department of Chemistry Fudan University  220 Handan Road Shanghai 200433 P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuewen","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Chemistry Fudan University  220 Handan Road Shanghai 200433 P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yunyan","family":"Kuang","sequence":"additional","affiliation":[{"name":"Department of Chemistry Fudan University  220 Handan Road Shanghai 200433 P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jie","family":"Wu","sequence":"additional","affiliation":[{"name":"Department of Chemistry Fudan University  220 Handan Road Shanghai 200433 P. R. China"},{"name":"State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences  345 Lingling Road Shanghai 200032 P. R. 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