PRODUCTION AND PROPERTIES OF 2,3-BUTANEDIOL: VI. DEHYDRATION BY SULPHURIC ACID
- 1 November 1945
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Research
- Vol. 23b (6) , 281-289
- https://doi.org/10.1139/cjr45b-034
Abstract
Dehydration of 2,3-butanediol in the liquid phase with 3 to 20% of sulphuric acid gave water, butanone-2, and the cyclic methyl ethyl ketal of 2,3-butanediol as the chief products, the total yield of liquid products being about 96%. The reaction can be run as a continuous process, and by using conditions that favour removal of the cyclic ketal from the reaction mixture it may make up 75% of the weight of the total liquid products. The rate of dehydration of 2,3-butanediol varied as the square of the 2,3-butanediol concentration and increased logarithmically with increase in the concentration of sulphuric acid.Keywords
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