Acetyl transfer from N-acetyloxypyridinium cations to 4-(4′-N,N-dimethylaminostyryl)-pyridine N-oxide and 4-dimethylaminopyridine |
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| Authors: | V I Rybachenko G Shroeder K Yu Chotii R G Semenova L V Grebenyuk |
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| Institution: | (1) L. M. Litvinenko Institute of Physical Organic and Coal Chemistry, National Academy of Sciences of Ukraine, R. Lyuksemburg St., 340114 Donetsk, Ukraine;(2) Chemistry Faculty, Adam Mickiewicz University, 6 Grunwaldska St., 60780 Poznan, Poland |
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| Abstract: | Kinetic data are given for the transfer of the acetyl group from the N-acetyloxypyridinium cations of tetraphenylborate salts
to 4-(4′-N,N-dimethylaminostyryl)pyridine N-oxide and 4-dimethylaminopyridine in acetonitrile solution. Structural factors
were found to affect the rate constants and activation parameters. Correlation equations are given relating the acetyl transfer
rate constants with pKBH+ values of the leaving group and frequencies of the carbonyl vibrations of the salts.
Translated from Teoreticheskaya i éksperimental’naya Khimiya, No. 2, pp. 75–77, March–April, 1997. |
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