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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 225996Generated: October 31, 2026

Ammonium Chloride → HCID 57752947, compound

https://huagongshe.com/reaction/225996

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantSodium borohydrideHCID 4311764—
ReactantHCID 57752942HCID 57752942—
SolventEthanolHCID 702—
ProductHCID 57752947HCID 5775294774.3%

Reaction Steps

To 5,7-dichloro-6-methylpyrazolo[1,5-a]pyrimidine-3-carbaldehyde (200 mg) in ethanol (20 mL) was added sodium borohydride (70 mg) and the reaction mixture was stirred at room temperature for 15 min. Saturated aqueous NH4Cl (1 mL) was added and the reaction mixture was stirred for a further 10 min then the solvent was removed under reduced pressure. Water and ethyl acetate were added and the product was extracted with ethyl acetate (3×). The combined organic phase was washed (water, saturated aqueous NaCl) and dried (MgSO4) to give the title compound (150 mg); 1H-NMR (400 MHz, CDCl3) d(ppm): 8.22 (1H, s, 2-H), 4.90 (1H, s, CH2OH).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07557110B2
Source datasetuspto-grants-2009_07
ORD IDord-c1dc3376b3884796aa338a3966a1423a
Source noteuspto-grants-2009_07