ethyl N-[6-(ethoxycarbonylamino)hexyl]carbamate

Conditions: temp:230.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 368 g of 1,6-bis-(cyclohexoxycarbonylamino)-hexane (1 mol) were dissolved in 1.5 l ethanol and heated for two hours at 230° C. in a 3 l autoclave. After cooling, the reaction mixture was separated from the excess ethanol and resultant cyclohexanol in a water jet vacuum. The reaction product was examined by high pressure liquid chromatography (HPLC). A yield of 240 g of 1,6-bis-(ethoxycarbonylamino)-hexane was produced corresponding to a yield of 92% of the theoretical yield. After cooling the reaction mixture was separated from the excess ethanol and resultant cyclohexanol in a water jet vacuum