Tetrahedron p. 13841 - 13866 (1999)
Update date:2022-08-03
Topics:
Grigg, Ronald
Thornton-Pett, Mark
Xu, Juan
Xu, Long-He
The synthesis of novel 4-(5'-pyrrolidinyl)-β-lactams from imines derived from 4-formyl-β-lactams and α-amino esters via cascade imine → azomethine ylide → 1,3-dipolar cycloaddition reactions is described. These cascades are endo-specific, exhibit facial stereoselectivity and occur in good to excellent yields.
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