Palladium-Catalyzed cross-Benzannulation of Aminoenynes with Diynes. Highly Regioselective Synthesis of Polysubstituted Anilines |
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| Authors: | Saito Uchiyama Gevorgyan Yamamoto |
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| Institution: | Institute for Chemical Reaction Science, Tohoku University, Sendai, 980-8578, Japan, and Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan. |
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| Abstract: | Polysubstituted anilines were prepared by the palladium-catalyzed cross-benzannulation of conjugated aminoenynes 1-4 with diynes 8. The reaction proceeded in a highly regioselective manner under mild conditions, and the anilines were obtained as single regioisomers. Our method complements the well-known precedures for the preparation of polysubstituted anilines which are widely used in organic synthesis. |
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