Potentially carcinogenic cyclopenta[a]phenanthrenes. Part IV. Synthesis of 17-ketones by the Stobbe condensation
作者:M. M. Coombs、S. B. Jaitly、F. E. H. Crawley
DOI:10.1039/j39700001266
日期:——
2-, 3-, 4-, and 6-Methyl- and 6-methoxycyclopenta[a]phenanthren-17-ones were prepared from appropriately substituted naphthalenes or tetralones, through Stobbe condensation of the corresponding 1,2,3,4-tetrahydrophenanthren-1-ones. The synthesis of ketones labelled with 14C in ring D and in the 11-methyl group is also described.
通过适当取代的萘或四氢萘酮,通过相应的1,2,3,4-四氢菲咯啉的缩合缩合制备2-,3-,4-和6-甲基和6-甲氧基环戊基[ a ]菲蒽-17-酮。 -1个 还描述了在环D和11-甲基中标记为14 C的酮的合成。