Studies directed toward the total synthesis of the rubradirin antibiotics. 2. Synthesis of the unique morpholinonaphthoquinone chromophore: a lesson in Diels-Alder regiocontrol by diene substituent selection
Alan P. Kozikowski, Kiyoshi Sugiyama, James P. Springer
J. Org. Chem., 1981, 46 (11), pp 2426–2428
- DOI:
http://dx.doi.org/DOI:10.1021/jo00324a054