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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 578163Generated: November 3, 2026

Ammonia → 3-(Pyridazin-4-yl)-5-(2,3,4-trifluorophenyl)-1,2,4-oxadiazole

https://huagongshe.com/reaction/578163

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
Reactant2,3,4-Trifluorobenzoyl chlorideHCID 2734022—
ReactantN-Hydroxy-4-pyridazinecarboximidamideHCID 136140373—
Product3-(Pyridazin-4-yl)-5-(2,3,4-trifluorophenyl)-1,2,4-oxadiazoleHCID 44544773—

Reaction Steps

The titled compound was prepared according to the procedure of Method D using the product of Example 83D and 2,3,4-trifluorobenzoyl chloride (Aldrich). 1H NMR (300 MHz, CD3OD) δ 7.40-7.50 (m, J=9.3, 9.3, 7.0, 2.2 Hz, 1H), 8.10-8.20 (m, 1H), 8.39 (dd, J=5.4, 2.4 Hz, 1H), 9.46 (dd, J=5.3, 1.2 Hz, 1H), 9.87 (dd, J=2.2, 1.2 Hz, 1H) ppm; MS (DCI/NH3) m/z=279 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09040568B2
Source datasetuspto-grants-2015_05
ORD IDord-2265781e88944f8dac266cc7966538e5
Source noteuspto-grants-2015_05