Patents
Described herein is an improved process for the preparation of N-(2,3-Dihydrobenzo[1,4]dioxin-2-carbonyl)piperazine which includes heating a reaction mixture ethyl of 2,3-dihydrobenzo[1,4]dioxin-2-carboxylate and piperazine. The reaction mixture is then subjected to a series of washes and extraction to yield N-(2,3-Dihydrobenzo[1,4]dioxin-2-carbonyl)piperazine having a purity of greater than 99.9%.