摘要:
Herein, we describe the development of a method for the direct alkylation and aldol reaction of alpha-bromo-alpha-fluoro-beta-lactams. This method provides facile access to a wide range of 3-alkyl- and 3-hydroxyalkyl-fluoro-beta-lactams in good yields under mild conditions. The products were obtained with complete diastereoselectivity with regard to the relative configuration of the beta-lactam ring at C3 and C4 positions. The reaction conditions were tolerant of a broad range of electrophiles, which highlights the overall scope and utility of this procedure.