Water → HCID 171038878, compound

Participants

Reaction Steps

To 114 parts of 2-methylpseudourea sulfate in 400 parts of water at 0°C is added 106 parts of 50% sodium hydroxide, followed by 400 parts of acetone, and 51 parts of isopropyl isocyanate. The reaction mixture is allowed to come to room temperature in 3 hrs. The organic solvent is then evaporated under vacuum, the aqueous residue saturated with sodium chloride, and the mixture extracted with methylene chloride. The organic extract is dried and the methylene chloride evaporated to yield 78 parts of methyl 4-isopropylallophanimidate, m.p. 64°-67°C.

Provenance & Evidence