With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.208167-83-3,tert-Butyl 4-(2-chloroethyl)piperazine-1-carboxylate,as a common compound, the synthetic route is as follows.
To a stirred solution of tert-butyl 4-(2-chloroethyl)piperazine-l -carboxylate (9.7 g, 38.9 mmol) in ethanol (25 ml) was added hydrazine hydrate (19.5 ml, 38.9 mmol) and resulting recation mixturte was heated to 60 C for 3h. The solvent was evaporated under reduced pressure, diluted with water, extracted with diethyl ether (75 ml x 4) and the organic extract was dried over Na2S04 and concentrated under reduced pressure to give 9.6 g of the desired product as colorless oil. lH NMR (400 MHz, DMSO-ifc): delta 1.45 (s, 9H), 2.38-2.45 (m, 4H), 2.52 (t, J = 6.0 Hz, 2H), 2.88 (t, J = 6.0 Hz, 2H), 3.04 (br, s, 3H), 3.39-3.69 (m, 4H).
208167-83-3, 208167-83-3 tert-Butyl 4-(2-chloroethyl)piperazine-1-carboxylate 22106269, apiperazines compound, is more and more widely used in various fields.
Reference：
Patent; GLENMARK PHARMACEUTICALS S.A.; KUMAR, Sukeerthi; CHAUDHARI, Sachin Sundarlal; GHARAT, Laxmikant Atmaram; KHAIRATKAR-JOSHI, Neelima; SHAH, Daisy Manish; MUKHOPADHYAY, Indranil; (327 pag.)WO2018/203298; (2018); A1;,
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