129503-20-4Relevant articles and documents
Synthetic Routes to 2-(2-Benzofuranyl)benzoic Acids and their Cyclization into Benzindenofuran-10-ones
Guillaumel, Jean,Boccara, Nicole,Demerseman, Pierre
, p. 1047 - 1051 (2007/10/02)
The benzindenofuran-10-ones 1 were prepared by the intramolecular cyclization of the 2-(2-benzofuranyl)benzoic acids, 2, the unequivocal routes to which are described herein.Various synthetic methods to these acids were tested, as well as the methods to cyclize them.