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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1582066Generated: November 2, 2026

Diisopropylethylamine → HCID 22719700, compound

https://huagongshe.com/reaction/1582066

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantMethyl 6-chloropyridine-3-carboxylateHCID 254249—
Reactant1-Methanesulfonylpiperazine hydrochlorideHCID 16265612—
SolventDimethylacetamideHCID 31374—
ProductHCID 22719700HCID 2271970069.1%

Reaction Conditions

Temperature120 °C

Reaction Steps

1-Mesylpiperazine hydrochloride (4.24 g) was added to a solution of methyl 6-chloronicotinate (1.7 g) and N,N-diisopropylethylamine (6.3 ml) in dimethylacetamide (20 ml) and the mixture was heated at 120° C. for 2 hours. The mixture was allowed to cool to ambient temperature and poured onto crushed ice/water (50 ml) to precipitate a tan solid. The solid was collected by filtration and dried at 80° C. for 18 hours in a vacuum oven, to give 1-mesyl-4-(5-methoxycarbonyl-2-pyridyl)piperazine (2.05 g), mp 205-207° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06734184B1
Source datasetuspto-grants-2004_05
ORD IDord-9292286fd81f4345ba06273551227122
Source noteuspto-grants-2004_05