Tetrahedron Letters p. 5053 - 5056 (1988)
Update date:2022-08-04
Topics: Characterization Deprotection Vinylidenepenams Propargylic triflates Organocuprates Allene chemistry Beta-lactams Monocyclic Bicyclic Penams, penems, cephams, carbapenems Strained organic molecules Enzyme-activated irreversible inhibitors Trifluoromethanesulfonate Ring closure Purification Protection of Functional Groups Starting Materials Further Modifications Formation of the Vinylidene Group
Buynak, John D.
Borate, H.B.
Husting, Chad
Hurd, Trace
Vallabh, Jyoti
et al.
Benzyl esters of the first 6-vinylidenepenams have been prepared by reaction of 6-position propargylic triflates with higher order organocuprates.This methodology permits a great deal of versatility in the introduction of substituents at the terminal alle
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