作者:M.J. Temple Robinson
DOI:10.1016/0040-4020(57)85010-8
日期:1957.1
Starting with 6-methoxy-5-methyltetralin (I), several routes to the compound (XXI) named in the title have been developed. The tetralin (I) was converted into the hexahydrophenanthrene (X) and some attempts were made to convert the latter into a 2:3-glycol or related compound with a view to changing the potential homo-D-ring into a natural D-ring before reducing the 4:12-double bond. The ketone (X)
从6-甲氧基-5-甲基四氢萘酚(I)开始,已经开发了几种获得标题名称的化合物(XXI)的途径。将四氢化萘(I)转化为六氢菲(X),并进行了一些尝试,将后者转变为2:3-乙二醇或相关化合物,以期将潜在的均D-环转变为天然D-环在减少4:12-双键之前。通过三阶段甲基化和一,二或三阶段还原,将酮(X)转化为所需产物(XXI),改变反应的顺序以获得结构和空间特异性。当试图预测并随后合理化减少的空间过程时,发现催化剂阻碍的概念1设置在比哈德勒的构象参数的更好的引导件,其最初被施加到Δ 4 -和Δ 5个-steroids。2个