Intramolecular cross-coupling of gem-dibromoolefins: a mild approach to 2-bromo benzofused heterocycles.
Highly useful halogenated benzofurans and benzothiophenes are prepared from readily available gem-dibromoolefins using a mild, ligand-free copper catalyzed cross-coupling procedure.
Newman
Stephen G
SG
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, CanadaM5S 3H6.
Aureggi
Valentina
V
Bryan
Christopher S
CS
Lautens
Mark
M
D000475:Alkenes / Q000737:chemistry*; D001572:Benzofurans / Q000138:chemical synthesis* / Q000737:chemistry; D002384:Catalysis; D003300:Copper / Q000737:chemistry; D054879:Halogenation; D013876:Thiophenes / Q000138:chemical synthesis* / Q000737:chemistry
D000475:Alkenes; D001572:Benzofurans; D013876:Thiophenes; C088015:benzothiophene; D003300:Copper