N,N-Diethylethylenediamine → HCID 59296238, compound

Participants

Reaction Conditions

Reaction Steps

A solution of N,N-diethyl-ethylenediamine (150 g) in methanol (500 mL) was treated dropwise rapidly with glyoxal dimethylacetal (60 wt % soln. in water, 225 g) at 10-15° C. After the addition was complete the solution was warmed to 15° C., then to 22° C. and left at this temperature for 16 hours. The reaction mixture was treated with 5% palladium on carbon (Johnson-Matthey type 38H paste, 15 g) and hydrogenated at 6 bar until the reaction was complete as judged by GC/MS. The catalyst was removed by filtration and the filtrate evaporated to dryness (toluene azeotrope, 2.5 L), affording 196.2 g of the sub-titled compound.

Provenance & Evidence