513,060. Cyclopentanophenanthrene compounds. NAAMLOOZE VENNOOTSCHAP ORGANON. March 16, 1938, No. 8178. Convention date, March 17, 1937. [Class 2 (iii)] Cyclopentanodimethylpolyhydro - phenanthrene carboxylic acids or derivatives thereof are obtained by subjecting grignardization products of unsaturated alpha-(cyclopentanodimethylpolyhydrophenanthrene)-propionic acids, the double bonds of which have been saturated with halogen or hydrogen halide and any further oxidizable groups attached to the nucleus have been suitably protected, to the action of a stronger oxidization agent than zone, and isolating the resulting acids. The grignardization product may comprise substituted or unsubstituted tertiary-norcholeniccarbinols. In an example, a grignard's solution prepared from 8 gr. of magnesium and 45 gr. of bromobenzene in absolute ether, is given an addition of 10 gr. of acetoxy-3-#-5, 6-bisnorcholenic acid to give the acylated diol. This is treated with chromic anhydride and glacial acetic acid to give acetoxy-3-#-5, 6- aetrocholenic acid. Specification 443,964 is referred to.
513,060.
环戊基苯并
蒽化合物。NAAMLOOZE VENNOO
TSCHAP ORGANON。1938年3月16日,编号8178。公约日期,1937年3月17日。[2类(iii)]通过将未饱和的α-(环戊基二甲基多羟基
蒽)-
丙酸的格林尼达化产物,其双键已用卤素或氢卤酸饱和,并且连接到核的任何进一步可氧化的基团已得到适当保护,经受比区更强的氧化剂作用,并分离得到环戊基二甲基多羟基
蒽羧酸或其衍
生物。格林尼达化产物可能包括取代或未取代的三级诺尔胆烯醇。例如,将8克
镁和45克
溴苯在绝对醚中制备的格林尼达溶液,加入10克乙酰氧-3-#-5,6-双诺尔
胆酸以得到酰化二醇。这经过
氧化铬酸和
冰乙酸处理以得到乙酰氧-3-#-5,6-乙
胆酸。参考规范443,964。