A convenient synthesis of 2-hydrazinoethylphosphonic acid and derivatives
摘要:
2-Hydrazinoethylphosphonic acid was prepared using a simple procedure involving Michael addition of hydrazine hydrate to diethyl ethenylphosphonate, followed by hydrolysis with hydrochloric acid. The product was converted into five- and six-membered heterocycles. (C) 2012 Elsevier Ltd. All rights reserved.
A convenient synthesis of ω-hydrazinoalkylphosphonic acids
摘要:
A simple, efficient, and cost effective method has been developed for the synthesis of co-hydrazinoalkylphosphonic acids via the nucleophilic substitution reaction of diethyl omega-haloalkylphosphonates and hydrazine using mild reaction conditions, followed by hydrolysis with hydrochloric acid. (C) 2015 Elsevier Ltd. All rights reserved.