Methylhydrazine → HCID 22054401, compound

Participants

Reaction Steps

2-(3-Methyl-1-oxobutyl)thiophene-3-carboxylic acid (5.3 g) prepared in a) above was dissolved in ethanol (30 ml) and methylhydrazine (1.5 ml) added. The resultant mixture was heated to reflux for 10 hours. The reaction mixture was evaporated and the residue obtained was dissolved in ethyl acetate. The organic phase was washed twice with dilute hydrochloric acid, twice with saturated sodium hydrogen carbonate solution and once with brine, then dried and evaporated. Purification by chromatography eluting with iso-hexane/ethyl acetate (2:1 to 1:1) gave the sub-title compound as an oil (3.05 g).

Provenance & Evidence