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9552936 
Journal Article 
Reaction of Acetyl Chloride with Acetic Acid and Formation of Tetrahedric σ-Complexes in a Reversible Process 
Terent'Ev, VA; Varfolomeeva, VV 
1996 
1 
Russian Journal of General Chemistry
ISSN: 1070-3632
EISSN: 1608-3350 
66 
2 
293-297 
English 
By kinetic and spectroscopic studies the reaction between acetyl chloride and acetic acid in CCl4 and dioxane media is shown to proceed by not a conventional route, but results in formation of tetrahedric σ-complex of 1 : 1 composition. The latter further reacts with a second molecule of acetyl chloride to form a new σ-complex as the final product of a reversible reaction. Hydrogen bonding strongly decelerate the reaction, reducing the rate constants by two orders of magnitude.