Copper- and Palladium-Catalyzed Cross-Coupling Reactions for the Synthesis of N-Fused Benzo[4,5]imidazo[2,1-b]thiazole Derivatives via Substituted trans-1,2-Diiodoalkenes, 1H-Benzo[d]imidazole-2-thiols, and Halobenzenes. 2017

Guodong Shen, and Bingchuan Yang, and Xianqiang Huang, and Yaxin Hou, and Huan Gao, and Jichun Cui, and Chuansheng Cui, and Tongxin Zhang
School of Chemistry and Chemical Engineering, School of Pharmacy, Liaocheng University , Liaocheng, 252000 Shandong, P. R. China.

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 in moderate to excellent yields.

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