The reaction of enamides with CAN in methanol affords variously functionalized β-lactams through a 4-exo-trig cyclization of α-carbamoylalkyl radicals; in most cases products with trans stereochemistry can be obtained.
在通过各种4-官能β内酰胺的
甲醇提供与CAN烯酰胺的反应外切- trig的α-
氨基甲酰基的基团的环化; 在大多数情况下,可以获得具有反式立体
化学的产品。