Production of 3,3- and 2,3-dimethylbutenes, 2,3-dimethylbutadiene and/or glycol or polyglycol N-alkyl-3,3- and -2,3-dimethylbutyl ether

摘要

For the production of 3,3- and 2,3-dimethylbutene, respectively, and 2, 3-dimethylbutadiene and/or for the simultaneous production of 3,3- and 2, 3-dimethylbutene, respectively, 2,3- dimethylbutadiene, and glycol or polyglycol n-alkyl-3,3- and -2,3- dimethylbutyl ether, respectively, alkali hydroxides are reacted in a two- phase liquid system in the presence of a glycol or polyglycol ether, respectively, at temperatures of 100-250 C., with mono- and dichlorodimethylbutane, respectively. By using, as the glycol or polyglycol ether, a glycol or polyglycol monoalkyl ether, the glycol or polyglycol n-alkyl-3,3- and -2, 3-dimethylbutyl ether, respectively, is obtained besides the olefin.