HYDRATION REACTIVITY OF KETENES - NONADDITIVE EFFECT OF ALKYL SUBSTITUENTS UPON THE RATE OF SPONTANEOUS HYDROLYSIS

Authors
LYASHCHUK SN SKRYPNIK YG
Citation
Sn. Lyashchuk et Yg. Skrypnik, HYDRATION REACTIVITY OF KETENES - NONADDITIVE EFFECT OF ALKYL SUBSTITUENTS UPON THE RATE OF SPONTANEOUS HYDROLYSIS, Reaction kinetics and catalysis letters, 52(2), 1994, pp. 453-459
Citations number
10
Categorie Soggetti
Chemistry Physical
Journal title
Reaction kinetics and catalysis letters → ACNP
ISSN journal
01331736
Volume
52
Issue
2
Year of publication
1994
Pages
453 - 459
Database
ISI
SICI code
0133-1736(1994)52:2<453:HROK-N>2.0.ZU;2-I
Abstract
The kinetics of spontaneous hydrolysis of dialkylsubstituted ketenes i n water-acetonitrile mixtures at 20 degrees C has been studied. An inc rease of the total volume of substituents at the terminal carbon atom of the ketenes leads to a sharp decrease of hydration rate, which is c onnected with the non-additivity of substituent effects. The possible reasons are discussed in terms of the reaction mechanism.