ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Kinetics of Dehydrochlorination of 2,3,4-Trichloro-1-butene and 2,3,3-Trichloro-l-butene by Methanolic Solution of Sodium Hydroxide

A. Kanala, J. Vojtko, and M. Hrušovský

Department of Organic Chemistry and department of Organic Technology, Slovak Technical University, Bratislava 1

Abstract:  Rate constants of dehydrochlorination of 2,3,4-trichloro-l-butene and 2,3,3-trichloro-1-butene by methanolic solution of sodium hydroxide at temperatures 0 —60°C were measured and the appropriate activation energies were calculated. The results showed that the reaction rate of dehydrochlorination of 2,3,4-trichloro-l-butene was at 40°C 436 times greater than that of 2,3,3-trichloro-1-butene. The activation energy for the first reaction was 17 ± 0.5kcal mol^-1, the frequency factor A_2,3,4-тсв = 1.014 X 10¹¹ ± 1.33 X 10⁹ 1 mol^-1 s^-1 and that for the second reaction was 20 + 1.2 kcal mol^-1 , the frequency factor was A_2,3,3-тсв = 4.094 X 10¹⁰ ± 1.75 x 10⁹ 1 mol^-1 s^-1.

Full paper in Portable Document Format: 265a457.pdf

Chemical Papers 26 (5) 457–459 (1972)