3-Methyl-3-butenal → 3-Methyl-2-butenal

Participants

Reaction Conditions

Reaction Steps

0.16 part of triethylamine is added to 81.2 parts of 3-methyl-3-buten-1-al and the mixture is heated in a pressure vessel to 170° C., at 10 bars pressure, in the course of 8 minutes. Immediately after reaching the set temperature, the mixture is again cooled to 50° C. in the course of 5 minutes. Distillation at 100 mm Hg gives 1.6 parts of unconverted 3-methyl-3-buten-1-al and 78.0 parts (98% of theory) of 3-methyl-2-buten-1-al of boiling point 77° C. This corresponds to a conversion of 98 percent.

Provenance & Evidence