Isobutylene → 1,1,1-Tribromo-4-methylpent-4-en-2-ol

Participants

Reaction Steps

A mixture of 281 parts of tribromoacetaldehyde, 168 parts of isobutene and 150 parts of petroleum ether was cooled to - 20° to - 5° C., and 13 parts of anhydrous aluminum chloride was added to the mixture dividedly in several times. The mixture was agitated at the above temperature for 5 hours. As the reaction advanced, crystals were precipitated from the reaction mixture. At the point of termination of the reaction, diethyl ether was added to the reaction mixture to form a homogeneous solution. The solution was then agitated at room temperature for 30 minutes, and 200 parts of water was added to the reaction mixture. The organic layer was recovered, low-boiling-point substances were removed by distillation, and the residue was subjected to distillation under reduced pressure to obtain 287 parts of 1,1,1-tribromo-4-methyl-4-penten-2-ol. The yield was 85%.

Provenance & Evidence