Nucleophilic substitutions at the pyridi
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Ezzat A. Hamed
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Article
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1997
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John Wiley and Sons
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English
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The kinetics of the reactions of 2-chloro-3-nitropyridine (ortho-like) and 5-nitro ( para-like) isomer with morpholine and piperidine were studied in methanol and benzene at several amine concentrations and temperatures in the range 25 -45ยฐC. The data show that k 3-NO 2 /k 5-NO 2 ratios are less tha