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- W2617206314 abstract "The nucleophilic addition reactions of N1-methyl-4-nitro-2,1,3-benzoselenadiazolium tetrafluoroborate 1 with aliphatic amines 2a–c (diethylamine 2a, dipropylamine 2b, and allylamine 2c) have been kinetically studied by UV–vis spectroscopy in acetonitrile solution at 20°C. The kinetic data have been analyzed, using the Mayr equation, allowing the quantification of the electrophilicity parameter (E) value of benzoselenadiazolium cation 1 (E = −14.72). The reliability of parameter E has been reasonably verified by comparison of calculated and experimental second-order rate constants for the reactions of cation 1 with other amines 2d–f (pyrrolidine 2d, piperidine 2e, and morpholine 2f) under the same conditions as those of the amines 2a–c. A linear Brönsted plot (R2 = 0.9945) with a βnuc value of 0.55 has been obtained for the reactions of 1 with the secondary amines employed in the present work. Interestingly, satisfactory correlation between the log values of measured and calculated rate constants with a slope very close to unity has been obtained and discussed." @default.
- W2617206314 created "2017-06-05" @default.
- W2617206314 creator A5035410687 @default.
- W2617206314 creator A5040183369 @default.
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- W2617206314 date "2017-05-29" @default.
- W2617206314 modified "2023-10-12" @default.
- W2617206314 title "Reactions of N1-Methyl-4-nitro-2,1,3-benzoselenadiazolium Tetrafluoroborate with Aliphatic and Cyclic Amines in Acetonitrile: Kinetic and Structure-Reactivity Correlations" @default.
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- W2617206314 doi "https://doi.org/10.1002/kin.21096" @default.
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