Copper- and Palladium-Catalyzed Cross-Coupling Reactions for the Synthesis of <i>N</i>-Fused Benzo[4,5]imidazo[2,1-<i>b</i>]thiazole Derivatives via Substituted <i>trans</i>-1,2-Diiodoalkenes, 1<i>H</i>-Benzo[<i>d</i>]imidazole-2-thiols, and Halobenzenes
作者:Guodong Shen、Bingchuan Yang、Xianqiang Huang、Yaxin Hou、Huan Gao、Jichun Cui、Chuansheng Cui、Tongxin Zhang
DOI:10.1021/acs.joc.7b00162
日期:2017.4.7
Two transition metal (Cu and Pd)-catalyzed C–S, C–N, and C–C bond cross-coupling reactions for the preparation of N-fused benzo[4,5]imidazo[2,1-b]thiazole derivatives were developed. A variety of 3-substituted and 2,3-disubstituted benzo[4,5]imidazo[2,1-b]thiazoles were efficiently and conveniently synthesized from the coupling reaction via trans-1,2-diiodoalkenes, 1H-benzo[d]imidazole-2-thiols, and halobenzenes
两种过渡金属(铜和钯)催化的CS,CN和CC键交联反应,用于制备N稠合的苯并[4,5]咪唑并[2,1- b ]噻唑衍生物被开发。各种3-取代和2,3-二取代的苯并[4,5]咪唑并[2,1- b ]噻唑进行高效且方便地从经由偶联反应合成的反式-1,2- diiodoalkenes,1 ħ -苯并[ d ]咪唑-2-硫醇和卤代苯,产率中等至优异。