Nucleophilic addition to the ethynyl group in ethynylestradiol catalyzed by crown ether-copper (1) iodide
作者:Chen Shu-hua、Luo Guang-rong、Chang Xiu-zhen、Zhao Hua-muig
DOI:10.1016/0039-128x(91)90120-k
日期:1991.10
A new and convenient synthetic route to acetylation of estrogens is described. Benzo-15-crown-5 and cuprous iodide-mixed catalyst catalyzed the nucleophilic addition of 2,4-dibromoethynylestradiol, resulting in the formation of a new compound, 2,4-dibromo-17 alpha-acetylestradiol, of which the structure was characterized by infrared, UV, 1H nuclear magnetic resonance, mass spectra, and elemental analysis
描述了一种新的且便利的合成雌激素乙酰化的途径。Benzo-15-crown-5和碘化亚铜混合的催化剂催化2,4-二溴乙炔基雌二醇的亲核加成,导致形成新化合物2,4-二溴-17-α-乙酰基雌二醇。通过红外,紫外线,1H核磁共振,质谱和元素分析。已经发现,该方法的产率远高于在常规炔属化合物的水合中获得的产率。