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Nitration of Benzo Crown Ethers with Potassium Nitrate in Polyphosphoric Acid |
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| Authors: | A. D. Grebenyuk S. A. Andreev I. A. Stempnevskaya M. G. Levkovich A. K. Tashmukhamedova |
| Affiliation: | (1) M. Ulugbek Tashkent State University, Tashkent, 700095, Uzbekistan |
| Abstract: | A general method for the nitration of benzo crown ethers with potassium nitrate in polyphosphoric acid has been developed. Mono- and dinitro derivatives of benzo-12-crown-4, benzo-15-crown-5, dibenzo-18-crown-6, and dibenzo-24-crown-8 have been prepared. The role of complex formation in the regioselective tendency for the nitration of dibenzo-18-crown-6 has been demonstrated. |
| Keywords: | benzo crown ethers potassium nitrate polyphosphoric acid nitration |
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