31012-22-3Relevant academic research and scientific papers
SOLVENT EFFECT IN THE AMINE EXCHANGE OF SCHIFF BASES, II. RELATIONSHIP BETWEEN THE RATE CONSTANT AND THE ACTIVITY COEFFICIENT OF ETHANOL IN ETHANOL-CYCLOHEXANE MIXTURE
Nagy, P.
, p. 461 - 468 (2007/10/02)
The rate of amine exchange has been investigated in the reaction of Schiff bases with primary amines in ethanol-cyclohexane mixtures.The rate constant depends, according to the folowing equation, on the rate constants measured in ethanol and cyclohexanol (k1*, k2*), on the composition of solvent mixture (x1, x2) and on the activity coefficient of ethanol (γ1): log k=x1 logk1* + x2 logk2* + (a+bγ1)x1x2.The validity of the equation is interpreted by the hydrogen bond formed between the ethanol and Schiff base molecules.
