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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 635660Generated: October 31, 2026

Piperazine → HCID 178433086, compound

https://huagongshe.com/reaction/635660

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 178432852HCID 178432852—
SolventWaterHCID 962—
SolventEthyl AcetateHCID 8857—
ProductHCID 178433086HCID 17843308629.1%

Reaction Steps

This compound was prepared according to the method described in Example 26 by employing 4-chloro-2-methyl-6-phenylpyrrolo[3,2-d]pyrimidine (Example 1(e)) (0.10 g, 0.41 mmol), piperazine (Aldrich Chemical Company) (0.382 g, 4.43 mmol) and K2CO3 (0.34 g, 2.50 mmol) in H2O (2.5 mL) to give crude pink solids. These solids were taken up in hot EtOAc, cooled to room temperature, and the impurities were removed by filtration. The filtrate was concentrated to give 0.035 g (29%) of the title compound as an off-white solid. Mp: 236° C. 1H NMR (DMSO-d6; 500 MHz): δ 2.42 (s, 3), 2.85 (t, 4, J=5.2), 3.62 (t, 4, J=5.2), 6.77 (s, 1), 7.36 (m, 1), 7.45 (t, 2, J=7.8), 7.95 (d, 2, J=7.6), 10.96 (s, 1); MS m/z: 294 (M+1). Anal. Calcd for C17H19N5O.0.5 H2O: C 67.53, H 6.67, N 23.16. Found: C 67.35, H 6.59, N 23.01.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06187777B1
Source datasetuspto-grants-2001_02
ORD IDord-2f65173c806247a98f5efe9c4a566bae
Source noteuspto-grants-2001_02