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Rhodium-catalyzed enantioselective [2+2+2] cycloaddition of diynes with unfunctionalized alkenes |
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| Authors: | Takanori Shibata Ai Kawachi Mika Ogawa Yusuke Kuwata Kyoji Tsuchikama Kohei Endo |
| Institution: | aDepartment of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555, Japan |
| Abstract: | A chiral rhodium complex catalyzed an enantioselective 2+2+2] cycloaddition of unsymmetrical diynes with norbornene, and tetracyclic products were obtained in good to excellent ee. The cycloaddition of a symmetrical diyne with styrene derivatives as coupling partners gave bicyclic products in good ee. |
| Keywords: | Cycloaddition Enantioselective Norbornene Rhodium Styrene |
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