Synthesis of alkaloids, (.+-.)-xylopinine and (.+-.)-tetrahydropalmatine, by a photo-induced rearrangement of spirobenzylisoquinolines in the presence of vitamin C.
Synthesis of alkaloids, (.+-.)-xylopinine and (.+-.)-tetrahydropalmatine, by a photo-induced rearrangement of spirobenzylisoquinolines in the presence of vitamin C.