title: Synthesis of functionalized oxazoles via silver-catalyzed cyclization of propargylamides and allenylamides.
abstract: Silver(I)-catalyzed [3,3] rearrangement of N-sulfonyl propargylamides affords functionalized oxazoles with highly regioselective migration of the sulfonyl group by the introduction of acyloxy groups. The allenylamides, generated from the corresponding propargylamides, can also undergo the silver-catalyzed cyclization to give various 5-vinyloxazoles.
authors.affiliation: Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China.
authors.forename: Yancheng
authors.initials: Y
authors.lastname: Hu
authors.forename: Ruxia
authors.initials: R
authors.lastname: Yi
authors.forename: Fan
authors.initials: F
authors.lastname: Wu
authors.forename: Boshun
authors.initials: B
authors.lastname: Wan
mesh_terms: D000577:Amides / Q000737:chemistry*; D002384:Catalysis; D003500:Cyclization; D015394:Molecular Structure; D010080:Oxazoles / Q000138:chemical synthesis* / Q000737:chemistry; D012834:Silver / Q000737:chemistry*
chemical_list: D000577:Amides; D010080:Oxazoles; D012834:Silver