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研究了应用“分散的二氧化硒”在含吡啶的氯苯中作用于海可吉宁醋酸酯(Ⅰ)以制备9(11)-脫氫海可吉宁醋酸酯(Ⅱ)的方便方法,收率达到75—8.9％理論。并用(Ⅱ)制得5α-孕甾-9(11),16-二烯-3β-醇-20-酮醋酸酯,作为甾体激素合成的中間体。
A convenient method for the preparation of 9 (11) -dehydrocatechol acetate (Ⅱ) using “dispersed selenium dioxide” in the presence of pyridine in chlorobenzene was studied. The rate of 75-8.9% theory. (II) to prepare 5α-pregna-9 (11), 16-dien-3β-ol-20-ketoacetate as steroid hormone synthesis intermediates.