Synthesis of C2-symmetric bis-indolyl sulfones |
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Authors: | Tapobrata Mitra Sanket Das Amit Basak |
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Institution: | aDepartment of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India |
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Abstract: | A new class of C2-symmetric bis-indole derivatives with 2,2′-linkage has been synthesized from bis-propargyl sulfones. The method involves treatment of the sulfones with catalytic amount of triethylamine to form the indole derivatives presumably via the intramolecular Michael addition to the intermediate bis-allenic sulfones. Interestingly, the expected Garratt-Braverman pathway was not followed. |
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