Hypervalent organoantimony compounds 12-ethynyl-tetrahydrodibenz[c,f][1,5]azastibocines: Highly efficient new transmetallating agent for organic halides
作者:Naoki Kakusawa、Yoshinori Tobiyasu、Shuji Yasuike、Kentaro Yamaguchi、Hiroko Seki、Jyoji Kurita
DOI:10.1016/j.jorganchem.2006.02.041
日期:2006.6
Extremely efficient and high-speed ethynylation of acyl chlorides, aryl iodides and bromides was demonstrated by palladium-catalyzed cross-coupling reaction of N-t-butyl-Sb-ethynyl-5,6,7,12-tetrahydrodibenz[c,f][1,5]azastibocine under mild conditions. Optimization and generalization of the hypervalent antimony-mediated coupling reaction are presented in detail. Single-crystal X-ray analysis of the N-methyl-1
酰基氯,芳基碘化物和溴化物的非常有效和高速的乙炔化物通过证明钯催化交叉偶联反应ñ -吨丁基-锑-乙炔基5,6,7,12-tetrahydrodibenz并[c,F] [1,5]氮杂阿司匹星在温和的条件下。详细介绍了高价锑介导的偶联反应的优化和一般化。N-甲基-1,5-氮杂阿司匹波星的单晶X射线分析表明,氮杂阿司他波星的显着反应性增强是由于Sb–N分子内非键相互作用引起的锑-乙炔基碳键的延长而产生的。