2-methoxyethyl carbamate

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 8.8 g (50 mmol) of 6-isocyanato-caproyl chloride were introduced into 25 ml of toluene. A mixture of 5.95 g (50 mmol) of carbamic acid-β-methoxyethyl ester, 3.96 g (50 mmol) of pyridine and 15 ml of toluene was added dropwise at 0° C. The mixture was stirred for 6 hours at 25° C. and then heated to 60° C. for 10 hours. It was diluted with 100 ml of toluene and extracted once with 50 ml of 0.1N HCl. The organic phase (MgSO4) was dried and filtered and the solvent was evaporated off. 5.1 g of a product similar in its properties to the product from Example 2 were obtained. Yield: 5.1 g=40%. was added dropwise at 0° C heated to 60° C. for 10 hours extracted once with 50 ml of 0.1N HCl The organic phase (MgSO4) was dried filtered the solvent was evaporated off

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 6.65 g (0.05 mol) of carbamic acid-β-methoxyethyl ester and 0.15 g of zinc chloride were heated to 50° C. 8.8 g (0.05 mol) of 6-isocyanato-caproyl chloride were added dropwise to the resulting melt. Nitrogen was passed through the mixture while it was heated to 60° C. for 3 hours and then to 100° C. for 26 hours. The reaction was then terminated (IR control). The mixture was cooled, taken up in 100 ml of toluene and decanted to remove insoluble constituents; the toluene was removed under vacuum. 11 g of a colorless oil was obtained, which solidified to a waxy solid. Yield: 11 g=85% The reaction was then terminated (IR control) The mixture was cooled decanted to remove insoluble constituents the toluene was removed under vacuum