Heterocyclisations de sels d'iminium provenant de quelques β-amino-β-lactames et de leurs derives gem-difonctionnels
摘要:
Beta-amino-beta-lactams and their gem-difunctional derivatives of two series (1-benzoazepine and linear analog) lead stereospecifically to two types of heterocycles in strong acidic medium. Iminium ions and benzylic carbocations are proposed as reactive intermediates.
Heterocyclisations de sels d'iminium provenant de quelques β-amino-β-lactames et de leurs derives gem-difonctionnels
摘要:
Beta-amino-beta-lactams and their gem-difunctional derivatives of two series (1-benzoazepine and linear analog) lead stereospecifically to two types of heterocycles in strong acidic medium. Iminium ions and benzylic carbocations are proposed as reactive intermediates.
Beta-amino-beta-lactams and their gem-difunctional derivatives of two series (1-benzoazepine and linear analog) lead stereospecifically to two types of heterocycles in strong acidic medium. Iminium ions and benzylic carbocations are proposed as reactive intermediates.