Sulfamic Acid → HCID 11447496, compound

Participants

Reaction Conditions

Reaction Steps

A hot suspension of 20 g of sulphamic acid in 40 ml of N-methylpyrrolidone is added to a solution of 10 g of 5,6,7,8-tetrahydronaphthylamine in 100 ml of 1,2-dichlorobenzene. The mixture is heated with stirring for 7 hours at 150° C. The product is filtered off and washed with dichlorobenzene and then with toluene. The precipitate is resuspended in 70 ml of water and neutralized to pH 7 with 5.5 ml of 30% sodium hydroxide. The insoluble matter is filtered off and the aqueous phase is extracted with ether. The aqueous phase is adjusted to pH 5 by adding HCl, at 5° C.; the mixture is filtered, and the residue is washed with water and dried to obtain 7.5 g of the expected product.

Provenance & Evidence