Reductive ipso-radical cyclization onto aromatic rings of five-membered alicyclic amino acids bearing N-(2-phenyl)benzoyl groups by photoinduced electron transfer promoted decarboxylation
Reductive ipso-radical cyclization onto benzene ring by alkyl radical is achieved. Substrates are limited to five-membered aliphatic carboxylic acids. Tetracyclic spiro dihydroisoquinolinones can be prepared in one-step.