Methanesulfonic Acid → HCID 20459491, compound

Participants

Reaction Steps

25 g of N,N'-bis-(diphenylmethyl)-1,2-propylenediamine dissolved in 75 ml of methanol are added dropwise while stirring vigorously at 10° C. to a solution of 12.05 g of methanesulphonic acid in 175 ml of water. The mixture is stirred for a further 15 minutes at room temperature, inoculated and left to crystallise overnight. The methanol is then drawn off under reduced pressure and the remainder is left to crystallise completely at 0° C., is filtered with suction, washed with 40 ml of ice water and left to dry under 0.1 to 0.4 mbar, first for a few hours at room temperature and then overnight at 50° C. N,N'-bis-(diphenylmethyl)-1,2-propylenediamine bis-methanesulphonate having a melting point of 218°-219° C. (with decomposition) is obtained.

Provenance & Evidence