A process for the production of 1-methyl-3-keto-.DELTA..sup.1,4 steroids of general formula I ##STR1## in which St symbolizes the radical of asteroid molecule, where a 3-keto-.DELTA..sup.1,4 steroid of general formula II ##STR2## in which St has the above-mentioned meaning, is reacted in an inert solvent in the presence of a nickel salt soluble therein with an organometallic compound of formula III, IV or V ##STR3## where X, Y.sub.1, Y.sub.2, Y.sub.3, Z.sub.1 and Z.sub.2 are as defined in the specification.
一种生产一种通式I的1-甲基-3-酮-.DELTA..sup.1,4类
固醇的方法,其中ST代表类
固醇分子的基团,其中一种通式II的3-酮-.DELTA..sup.1,4类
固醇 ##STR2## 在惰性溶剂中与可溶的
镍盐存在下,与式III、IV或V的有机
金属化合物反应,其中X、Y.sub.1、Y.sub.2、Y.sub.3、Z.sub.1和Z.sub.2如规范中所定义。