The kinetics of the reaction of 2-chloro-3-nitropyridine (ortho-like) and 2-chloro-5-nitropyridine (para-like) with a series of aryloxide ions were studied in methanol at different temperatures. Plots of DH โ versus DS โ for both reactions gave good straight lines with isokinetic temperatures of 168
โฆ LIBER โฆ
Reactivity and selectivity control in the substitution reactions of nitro group and fluorine in 3-R-5-nitrobenzotrifluorides with aryloxide and arylthioxide ions
โ Scribed by Vladislav M. Vlasov; Irina A. Khalfina
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 72 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0894-3230
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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