Fiorelli C, Savoia D. Asymmetric synthesis of delta-substituted alpha,beta-unsaturated delta-lactams by ring closing metathesis of enantiomerically pure N-acryloyl-homoallylic amines.
J Org Chem 2007;
72:6022-8. [PMID:
17625880 DOI:
10.1021/jo0703000]
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Abstract
Optically pure secondary homoallylic amines, obtained by highly diastereoselective addition of allylmetal reagents to imines derived from chiral amines, were N-dealkylated, and the primary amines were converted to N-acryloyl amides. Then, ring closing metathesis gave delta-substituted delta-lactams in good overall yields.
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