Hydrogenolytic transformations of 5a, 11a-epoxyhexahydronaphthacene-5,6,11,12-tetrones. Implications for the synthesis of 6-and 11-deoxyanthracyclinones
作者:Peter N. Preston、Thomas Winwick、Johh O. Morlery
DOI:10.1039/c39840000307
日期:——
Catalytic hydrogenation (H2Pd–C)of the epoxide (5a)give the dione derivative (6); an analogous procedure (5d)→(7)has been used in a sequence (5b)→(5c)→(5d)→(7)→(2d)→(2b)to give a valuable intermediate(2b)for the synthesis of 4,11-dideoxyanthracyclinones:implications for interconversions in the anthracyclinone series are described.