Methyl vinyl ketone → HCID 21269563, compound

Participants

Reaction Steps

14.4 g (60 mmoles) of 5-benzyl-benzimidazoline-2-thione amd 45 ml of methylvinylketone are boiled for 4 hours in the presence of 2 drops of 40%, methynolic Triton B solution. Then the reaction mixture is evaporated off. During storage the distillation residue crystallizes. This is recrystallized from 200 ml of ethanol and thus 19.86 g (87%) of title product melting at a temperature of 98°-100° C. are obtained.

Provenance & Evidence