Convenient synthesis of 1a,1b,2,5-tetrahydro-1H-5a-aza-cyclopropa[a]indenes by base promoted cyclodimerization of 1,1-dicyano-2-aryl-3-benzoylcyclopropanes |
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Authors: | Ying Han Wan-Quan Tang Ling-Yu GuoChao-Guo Yan |
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Affiliation: | College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China |
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Abstract: | 1,1-Dicyano-2-aryl-3-benzoylcyclopropanes in acetonitrile in the presence of triethylamine underwent cyclodimerization reaction to afford the novel polyfunctionalized 1a,1b,2,5-tetrahydro-1H-5a-aza-cyclopropa[a]indenes in moderate yields. These polycyclic compounds can be more conveniently synthesized by the one-pot domino reaction of N-phenacylpyridinium bromides with arylidene malononitriles. |
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Keywords: | Cyclopropane Pyridine ylide Ring-opening reaction Cyclodimerization Domino reaction |
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