Ceric ammonium nitrate promoted free radical cyclization reactions leading to β-lactams
作者:Andrea D'Annibale、Antonella Pesce、Stefano Resta、Corrado Trogolo
DOI:10.1016/s0040-4039(97)00162-7
日期:1997.3
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。