Synthesis of symmetrical 1, 3-diynes via tandem reaction of (Z)-arylvinyl bromides in the presence of DBU and CuI |
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| Authors: | Wen-Sheng Zhang Wen-Jing Xu Fei Zhang Gui-Rong Qu |
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| Affiliation: | a School of Science, Jiaozuo Teachers' College, Jiaozuo 450001, China;b Jiaozuo Vocational Education Center, Jiaozuo 450001, China;c College of Chemical and Environmental Engineering, Henan Normal University, Xinxiang 453007, China |
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| Abstract: | Microwave-assisted tandem reaction of (Z)-arylvinyl bromides involving an elimination and homocoupling in the presence of DBU and CuI in DMF affords a variety of symmetrical 1,3-diynes in good to excellent yields. This tandem process, eliminating the need of volatile and savory terminal alkynes, provides an alternative to the conventional homocoupling methods for the synthesis of symmetrical 1,3-diynes. |
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| Keywords: | Catalysis Copper Conjugation Coupling Tandem reaction |
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