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Tong Zhang Nai-Xing Wang Yue-Hua Wu Zhan Yan Yalan Xing Jia-Long Wen Xue-Wang Gao 《Tetrahedron letters》2018,59(51):4525-4527
A novel direct alkylation of thiophenes via bis-coupling with vinyl acetates has been developed. To the best of our knowledge, this represents the first report of the iron-catalysed coupling of two thiophenes with vinyl groups. Utilizing earth-abundant, inexpensive, and non-toxic iron catalysts, this methodology converts simple thiophenes to symmetrical dithienylethane derivatives under mild conditions in one step. 相似文献
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