Urea → HCID 53739905, compound

Participants

Reaction Steps

To a solution of 3.44 grams (0.047 moles) of isobutylamine in 20 ml of pentane in a 50 ml erlenmeyer flask, cooled by a water bath, was added dropwise with stirring 6.56 grams (0.0235 moles) of 2,2'-azobis(2-isocyanato-4-methylpentane) (from Example XXIX). The reaction was stirred for 90 minutes during which time the insoluble product dropped out of the pentane. The pentane was evaporated under reduced pressure leaving 5.9 grams (59% crude yield) of a viscous light brown liquid. The infrared spectrum of the product showed a strong broad urea type carbonyl at 1610 cm-1. The isocyanate band at 2250 cm-1 that was present in the starting material is absent.

Provenance & Evidence