O. Yamada et K. Ogasawara, Diastereoselective synthesis of 3,4-dimethoxy-7-morphinanone: A potential route to morphine, ORG LETT, 2(18), 2000, pp. 2785-2788
Diastereoselective synthesis of racemic 3,4-dimethoxy-7-morphinanone from r
acemic 2-(2,3-dimethoxyphenyl)cyclohexen-1-ol has been achieved. The relati
ve structure has been determined by transformation of the product into the
known 3,4-dimethoxy-6-morphinanone. Resolution of the starting cyclohexenol
has also been accomplished for use in a future enantiocontrolled synthesis
of morphine.