Synthesis of Novel Steroid Backbones via Photoinduced Electron Transfer Initiated Domino Cyclizations of Silyl Enol Ethers
作者:Jochen Mattay、Jens O. Bunte、Stefanie Rinne
DOI:10.1055/s-2004-815956
日期:——
cations of specifically designed precursors undergo ring closure reactions to yield novel steroid compounds. These domino reactions proceed with high stereo-selectivity. The synthesis of the complex silyl enol ethers, the stereo-selective domino cyclization process and the assignment of stereochemistry of the novel steroid compounds is presented.
光致电子转移用于活化甲硅烷基烯醇醚。专门设计的前体产生的自由基阳离子经历闭环反应,产生新的类固醇化合物。这些多米诺骨牌反应以高立体选择性进行。介绍了复合甲硅烷基烯醇醚的合成、立体选择性多米诺环化过程以及新型甾体化合物的立体化学分配。