New, simple total syntheses of benzo[b]naphtho[2,3-d]furan-6,11-diones and benzo[b]naphtho[2,1-d]furans

Article abstract of DOI:10.1016/S0040-4039(98)00167-1

Here we account the transformation of 2-[(2'- bromophenyl)acetyl]phenylacetic acids and 1-benzylisoquinolines into benzo[b]naphtho[2,3-d]furan-6,11-diones. Synthesis of benzo[b]naphtho[2,1- d]furans from 1-benzylisoquinolines is also described.