New Approach to β-Lactam-Fused Enediynes (“Lactenediynes”) by Stereoselective Pinacol Coupling
作者:Luca Banfi、Giuseppe Guanti、Andrea Basso
DOI:10.1002/(sici)1099-0690(200003)2000:6<939::aid-ejoc939>3.0.co;2-q
日期:2000.3
of the ten-membered ring at the double bond site is reported. After failure of the known methodologies, this closure was eventually successfully achieved thanks to a highly stereoselective, vanadium(II)-mediated pinacol coupling of bis(alk-2-ynal) 7.
报告了通过在双键位点闭合十元环来快速合成未官能化的乳糖二炔 3。在已知方法失败后,由于双 (alk-2-ynal) 7 的高度立体选择性、钒 (II) 介导的频哪醇偶联,最终成功实现了这种闭合。