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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 981605Generated: October 31, 2026

Dimethylformamide → HCID 19748235, compound

https://huagongshe.com/reaction/981605

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
Reactant1-Piperazinecarboxylic acid, ethyl esterHCID 8431—
ReactantSodium CarbonateHCID 10340—
ReactantHCID 14989174HCID 14989174—
SolventWaterHCID 962—
ProductHCID 19748235HCID 1974823550%

Reaction Steps

A mixture of 3.16 parts of ethyl 1-piperazinecarboxylate, 4.7 parts of 2-chloro-1-(3-chloropropoxy)-4-methoxybenzene, 3.2 parts of sodium carbonate and 67.5 parts of N,N-dimethylformamide was stirred overnight at reflux temperature. After cooling, the reaction mixture was poured into water and the product was extracted with 2,2'-oxybispropane. The extract was dried, filtered and evaporated. The residue was converted into the hydrochloride salt in 2,2'-oxybispropane. The salt was filtered off and dried, yielding 4 parts (50%) of ethyl 4-[3-(2-chloro-4-methoxyphenoxy)propyl]-1-piperazinecarboxylate monohydrochloride (int. 12).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04992433
Source datasetuspto-grants-1991_02
ORD IDord-273c52c0219a4fa2b24ea702a91750c0
Source noteuspto-grants-1991_02