Benzene → HCID 20289954, compound

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Reaction Steps

Methylaminoacetaldehyde dimethylacetal (1.8 grams, 0.015 mole) was added to a benzene solution containing 4.0 grams (0.015 mole) of the 5-[1-(4-methylphenoxy)ethyl]-1,3,4-thiadiazol-2-yl isocyanate dimer (prepared above). The resulting solution was refluxed for 20 minutes, topped on a roto-vac at 70° C. to form a viscous red-orange oil, which was redissolved in benzene-hexane mixture and left to stand overnight. Crystals formed which were removed by suction filtration, and dried in a vacuum oven at 70° C. to 3.2 grams of tan crystals of [5-[1-(4-methylphenoxy)ethyl]-1,3,4-thiadiazol-2-yl]-1-methyl-1-(2,2-dimethoxyethyl)urea, (melting point 94°-100° C.).

Provenance & Evidence