The sulphonation of indole and some of its simple alkyl derivatives |
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| Authors: | GF Smith DA Taylor |
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| Institution: | Department of Chemistry, University of Manchester UK;Department of Chemistry, University of Rhodesia UK |
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| Abstract: | The sulphonation of indole, 1-methyl-, 2-methyl-, and 1,2-dimethylindole by pyridinium-1-sulphonate in refluxing pyridine occurs smoothly at C3; analogous sulphonation of 3-methyl- and 1,3-dimethylindole occurs at C2; 2,3-dimethylindole does not react under these conditions. |
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