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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1428936Generated: October 31, 2026

Triethylamine → Tert-butyl 4-(6-methoxypyrimidin-4-yl)piperazine-1-carboxylate

https://huagongshe.com/reaction/1428936

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactanttert-Butyl piperazine-1-carboxylateHCID 143452—
Reactant4-Chloro-6-methoxypyrimidineHCID 1051509—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductTert-butyl 4-(6-methoxypyrimidin-4-yl)piperazine-1-carboxylateHCID 6656970958%

Reaction Conditions

Temperature60 °C

Reaction Steps

10.8 g piperazine-1-carboxylic acid tert-butyl ester was added to 8.3 g 4-chloro-6-methoxy-pyrimidine and 16 mL triethylamine in 40 mL DMF. The reaction was stirred over night at 60° C. The mixture was diluted with water and extracted with ethyl acetate. The organic layer was dried with magnesium sulfate and evaporated. The residue was purified chromatography on silica gel (petrolether/ethyl acetate: 8/2) to yield 9.8 g of the desired compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08937176B2
Source datasetuspto-grants-2015_01
ORD IDord-56fec579ac164c639bb319f0dbf82384
Source noteuspto-grants-2015_01