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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1749346Generated: October 31, 2026

1,3,5-trimethyl-1H-pyrazol-4-amine → HCID 7677840, compound

https://huagongshe.com/reaction/1749346

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,3,5-trimethyl-1H-pyrazol-4-amineHCID 161603—
Reactant2-Chloro-5-pyridinesulfonyl chlorideHCID 2792792—
SolventPyridineHCID 1049—
ProductHCID 7677840HCID 767784075.3%

Reaction Steps

Prepared from 6-chloropyridine-3-sulfonyl chloride (4.8 g, 22.7 mmol) and 4-amino-1,3,5-trimethyl-1H-pyrazole (2.84 g, 22.7 mmol) in pyridine (35 ml) according to the method of intermediate 1, to give the title compound as a white solid (5.13 g, 17.1 mmol, 75%). δH (D-6 DMSO, 300K) 9.51 (1H, s), 8.59 (1H, d J 2.3 Hz), 8.03 (1H, dd J 7.6 Hz 2.3 Hz), 7.77 (1H, d J 7.6 Hz), 3.58 (3H, s), 1.84 (3H, s), 1.63 (3H, s). m/z (ES+, 70V) 301.1 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09156811B2
Source datasetuspto-grants-2015_10
ORD IDord-486bcc516d9e4aa699665e62633f550e
Source noteuspto-grants-2015_10