Patents

US6608200: Process for the preparation of N-(2,3-Dihydrobenzo[1,4]dioxin-2-carbonyl)piperazine

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%.

Filing Date: 07-10-2002

Issue Date: 19-08-2003

Applicant: CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad

Patent No: US6608200

Application No: 10/266991

Inventor(s): Pardhasaradhi, Malladi (Secunderabad, In); Kumaraswamy, Gullapalli (Nacharam, In); Das, Arun Kanti (Hyderabad, In); Jena, Nivedita (Hyderabad, In); Nair, Chembumkulam Kamalakshyamma Snehalatha (Secunderabad, In); Sastry, Mudiganti Naga Venkata (Hyderabad, In)

IPC Classification: C07D 405/06

Country: United States of America

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