反应详情

Into an apparatus similar to that in Example 1, were charged 228.1 g (1 mole) of N-dodecylethylenediamine and 130.1 g (1 mole) of ethyl 2-formylpropionate. At 140° to 145° C., 18 g of water and 46 g of ethanol were distilled off to obtain 4-dodecyl-6-methyl-3,6-dihydro-2H-1,4-diazepin-5-one.

1. distillationAt 140° to 145° C., 18 g of water and 46 g of ethanol were distilled off