Hydrochloric Acid → 1,1,1-Trichloro-4-methylpent-4-en-2-ol

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Reaction Steps

To 97.5 ml. (1 mole) of anhydrous chloral 0.5 g. of ferric chloride hexahydrate is added. To the obtained yellow clear solution 58-59 g. of isobutylene are introduced so that the temperature does not exceed 15°-20° C. To the reaction mixture a mixture of 35 ml. of water and 15 ml. of concentrated hydrochloric acid is added and the layers are separated. The organic layer is washed with water, diluted with benzene and water is removed from the mixture in a vacuo of 100 Hgmm. 194.6 g. (96.5%) of 1,1,1-trichloro-4-methyl-4-pentene-2-ol are obtained. Active ingredient content: 98.2%. The product can be further purified by vacuum distillation.

Provenance & Evidence