Highly regio- and chemoselective [2 + 2 + 2] cycloaddition of 1,6-heptadiynes with allenes catalyzed by cobalt complexes |
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| Authors: | Wu Ming-Si Shanmugasundaram Muthian Cheng Chien-Hong |
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| Institution: | Department of Chemistry, Tsing Hua University, Hsinchu, Taiwan 300. |
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| Abstract: | The CoI2(PPh3)2/Zn system effectively catalyzes the 2 + 2 + 2] ene-diyne cycloaddition of 1,6-heptadiynes with allenes in a highly regio- and chemoselective fashion to yield substituted benzene derivatives in good to excellent yields. |
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