Kinetics of the Reaction of 2-Chloro-3,5-dinitrobenzotriflouride with Aniline in Toluene and Methanol-Toluene Mixed Solvents
✍ Scribed by Magda F. Fathalla
- Publisher
- John Wiley and Sons
- Year
- 2012
- Tongue
- English
- Weight
- 539 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0256-7660
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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 ≠ versus DS ≠ for both reactions gave good straight lines with isokinetic temperatures of 168
The reaction rates of 2-chloro-3,5-dinitropyridine 1 with a series of arylthiolates 2a-h in methanol have been measured at 25°C. The products are the corresponding 2-thioaryl-3,5-dinitropyridine 3a-h. Good Hammett correlation with value Ϫ1.19 was obtained suggesting an elimination-addition mechanism
## Abstract The solvent effect on a nucleophilic substitution reaction of 2‐ and 4‐chloro‐3,5‐dinitrobenzotrifluoride with substituted anilines was studied in methanol, acetonitrile, and toluene at 25°C. This reaction is of second order, except 2‐chloro‐3,5‐dinitrobenzotrifluoride in toluene shows
## Abstract For Abstract see ChemInform Abstract in Full Text.
## Abstract Rate constants, __k__~A~, for the aromatic nucleophilic substitution reaction of 2‐chloro‐3,5‐dinitropyridine with aniline were determined in different compositions of 1‐(1‐butyl)‐3‐methylimidazolium terafluoroborate ([bmim]BF~4~) mixed with water, methanol, and ethanol at 25°C. The obt