Back to results
US 5,206,406 AGranted
Method for the preparation of N-ethylhydroxylamine hydrochloride
AssigneeHoechst-Roussel Pharmaceuticals Inc.
InventorGeorge E. Lee
Life of this patent
Estimating the term…
Abstract
A process for preparing N-ethylhydroxylamine hydrochloride which comprises reacting hydroxylamine hydrochloride with di-t-butyl dicarbonate in the presence of a base thus producing N,O-bis-[(1,1-dimethylethoxy)carbonyl]-hydroxylamine, alkylating said reaction product and then cleaving with acid the tert-butyloxy carbonyl (BOC) portion of the alkylated product.
Claims1
A process for preparing N,O-bis-[(1,1-dimethylethoxy)carbonyl]-hydroxylamine which comprises reacting hydroxylamine hydrochloride with a base in water followed by treatment with di-t-butyl-dicarbonate.
Dependencies are inferred from the claim text.