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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 872899Generated: October 29, 2026

Ammonium Chloride → HCID 178467503, compound

https://huagongshe.com/reaction/872899

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantSodium borohydrideHCID 4311764—
ReactantHCID 67171876HCID 67171876—
SolventEthanolHCID 702—
ProductHCID 178467503HCID 17846750345.6%

Reaction Conditions

Temperature50 °C

Reaction Steps

Into a mixture containing sodium borohydride (0.044 g, 1.159 mmol) in ethanol (10 ml), (S)-3-acetyl-4-chloro-N-(1-(3-(3-chloro-4-cyanophenyl)-1H-pyrazol-1-yl)propan-2-yl)-1H-pyrazole-5-carboxamide (0.5 g, 1.159 mmol) of Example 314 was slowly added and the temperature was raised to 50° C. for 10 min. The reaction mixture was stirred at RT for 19 h. Saturated ammonium chloride (30 ml) was added and the mixture was extracted with ethyl acetate, combined organic layers dried with Na2SO4, filtered and evaporated. The product was purified with flash chromatography. Yield 45.6%. 1H-NMR (400 MHz; CDCl3): δ 1.24 (d, 3H), 1.58 (dd, 3H), 2.88 (bs, 1H), 4.25-4.32 (m, 1H), 4.41-4.49 (m, HA), 4.56-4.68 (m, 1H), 5.04-5.12 (m, 1H), 6.62 (d, 1H), 7.48-7.51 (m, 1H), 7.61-7.67 (m, 2H), 7.70-7.75 (m, 1H), 8.01-8.07 (m, 1H), 11.27 (bs, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08975254B2
Source datasetuspto-grants-2015_03
ORD IDord-0a6a6f3706584b8eaa544d2204eb9e8d
Source noteuspto-grants-2015_03