Photoinduced molecular transformations. Part 107. A versatile substitution of a carbonyl group of steroidal ketones by a heteroatom. The synthesis of aza-, oxa-, thia-, selena-, and tellurasteroids
SUGINOME, HIROSHI;YAMADA, SHINJI;WANG, JIAN BO, J. ORG. CHEM., 55,(1990) N, C. 2170-2176
作者:SUGINOME, HIROSHI、YAMADA, SHINJI、WANG, JIAN BO
DOI:——
日期:——
REPLACEMENT OF A CARBONYL GROUP OF CYCLIC KETONES BY A SULFUR OR A NITROGEN ATOM. A NEW METHOD FOR TRANSFORMAT OF STEROIDAL KETONES INTO THIA- OR AZASTEROIDS
作者:Hiroshi Suginome、Shinji Yamada
DOI:10.1246/cl.1984.2079
日期:1984.12.5
We describe a new and versatile method for transforming cyclic ketones into cyclic sulfides or cyclic amines with the same ring size via five-step procedure. The transformation is stereospecific with regard to the chiral center adjacent to the carbonylgroup of the ketones.
Photoinduced molecular transformations. Part 107. A versatile substitution of a carbonyl group of steroidal ketones by a heteroatom. The synthesis of aza-, oxa-, thia-, selena-, and tellurasteroids