Design of the Synthesis of Steroidal 1,3,5(10),9(11)-Tetraenes via Isomerization of 1,3,5(10),8-Isomers - effect of the Solvent System
作者:Li-Gong Liu、Tong Zhang、Zhen-Su Li
DOI:10.1080/00397919608003846
日期:1996.12
p-Toluenesulphonic acid catalytic isomerization of 1,3,5(10),8-tetraene steroids in benzene or toluene with the presence of acetic acid is established as a simple high-yield (85 similar to 89%) procedure to the synthesis of the corresponding 9(11)-isomers. The solvation effect is discussed for the design of the new reaction media.
在乙酸存在下,1,3,5(10),8-四烯类固醇在苯或甲苯中的对甲苯磺酸催化异构化被建立为一种简单的高产率(85 类似于 89%)程序来合成相应的 9(11)-异构体。为设计新的反应介质讨论了溶剂化效应。