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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2266958Generated: October 26, 2026

Dimethylformamide → Isobutyl 4-(6-chloropyrimidin-4-yl)piperazine-1-carboxylate

https://huagongshe.com/reaction/2266958

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantTriethylamineHCID 8471—
Reactant4,6-DichloropyrimidineHCID 70943—
ReactantIsobutyl piperazine-1-carboxylateHCID 11788701—
SolventWaterHCID 962—
ProductIsobutyl 4-(6-chloropyrimidin-4-yl)piperazine-1-carboxylateHCID 58857066—

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of 4,6-dichloropyrimidine (0.25 g, 1.7 mmol), isobutyl piperazine-1-carboxylate (0.31 g, 1.7 mmol), triethylamine (0.23 mL, 1.8 mmol), and DMF (4.2 mL) was sealed in a microwave reactor vial and heated by microwave irradiation at 120° C. for 2 minutes. The reaction was cooled, diluted with water, and extracted with CH2Cl2. The combined extracts were dried over Na2SO4 and evaporated to obtain isobutyl 4-(6-chloropyrimidin-4-yl)piperazine-1-carboxylate. LC/MS: m/z 299.2 (M+H)+ at 3.10 min (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07858786B2
Source datasetuspto-grants-2010_12
ORD IDord-b76d7eebe7b245c98c3cc5ff70b1e57f
Source noteuspto-grants-2010_12