Ethylenediamine → HCID 20509053, compound

Participants

Reaction Steps

A mixture of 2,5-dihydrothiophene 1,1-dioxide (236.4 parts, 2.0 moles); ethylenediamine (480.8 parts, 8 moles); and water (600 ml.) was heated at 70°-80° C. for 4 hours. The water and unreacted ethylenediamine were distilled under reduced pressure. Benzene (750 ml.) was added to the residue and the residual water was removed by azeotropic distillation. After removing the benzene, a reddish colored viscous oil in the amount of 375 g. (63 percent yield) that solidified on cooling was obtained.

Provenance & Evidence