TY - GEN AU - Chen,S H AU - Luo,G R AU - Chang,X Z AU - Zhao,H M TI - Nucleophilic addition to the ethynyl group in ethynylestradiol catalyzed by crown ether-copper (1) iodide SN - 0039-128X PY - 1992///0504 KW - Catalysis KW - Copper KW - chemistry KW - Estradiol KW - analogs & derivatives KW - Ethers KW - Ethinyl Estradiol KW - Iodides KW - Molecular Structure N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1016/0039-128x(91)90120-k ER -