ChemInform Abstract: Rhodium(I)-Catalyzed Decarbonylative Direct Olefination of 6-Arylpurines with Vinyl Carboxylic Acids Directed by the Purinyl N1 Atom.
A general method for the direct ortho-olefination of 6-arylpurines (I) and (VIII) with carboxylic acids (II), (IV), and (VI) in the presence of a Rh-catalyst and pivalic anhydride as an additive is reported.