INSERTION OF OXYGEN ATOM IN STEROID FRAMEWORKS–A NEW METHOD OF TRANSFORMATION OF HYDROXYSTEROID INTO OXASTEROID
作者:Hiroshi Suginome、Shinji Yamada
DOI:10.1246/cl.1982.1233
日期:1982.8.5
A two-step transformation of saturated hydroxysteroids into oxasteroids is described; the reaction involves photo-reaction of the hypoiodites of the hydroxysteroids generated with mercury(II) oxide and iodine to give isomeric formyl esters [e.g., 2 and 3], which are cyclized to oxasteroids [e.g.,4 and 5] with sodium borohydride.
Photoinduced transformations. Part 73. Transformations of five- (and six-) membered cyclic alcohols into five- (and six-) membered cyclic ethers - a new method of a two-step transformation of hydroxy steroids into oxasteroids
作者:Hiroshi Suginome、Shinji Yamada
DOI:10.1021/jo00194a015
日期:1984.10
SUGINOME, HIROSHI;OHUE, YOSHIHIKO;ORITO, KAZUHIKO, J. CHEM. SOC. PERKIN TRANS., 1,(1987) N 6, 1247-1253