331822-05-0Relevant articles and documents
A conjugate addition-radical cyclisation approach to sesquiterpene-phenol natural products
Crombie, Barry S.,Smith, Colin,Varnavas, Christalla Z.,Wallace, Timothy W.
, p. 206 - 215 (2007/10/03)
A conjugate addition-radical cyclization approach to sesquiterpenephenol natural products was discussed. The first step involved the conjugate addition of an organocopper species to a chromone-3-carboxylate which resulted in 2,2-disubstituted chroman-4-ones. The second step was the generation of a β-ketoester radical. The last step involved a stereoselective manganese(III) acetate-mediated radical cyclization reaction.