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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 746414Generated: October 29, 2026

1,4-Dioxane hydrochloride → HCID 69203803, compound

https://huagongshe.com/reaction/746414

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-Dioxane hydrochlorideHCID 20443148—
ReactantHCID 58687974HCID 58687974—
ProductHCID 69203803HCID 69203803110.6%

Reaction Steps

A solution of the product from Step C (4.53 g, 11.24 mmol) in 4N HCl/Dioxane (55 ML, 225 mmol) was stirred overnight. The solvent was evaporated to yield the 7-(trifluoromethyl)-1,2,3,4-tetrahydropyrido[3,4-d]pyridazine HCl salt (2.98 g, 100%). 1H-NMR (400 MHz, CD3OD) δ 8.63 (s, 1H), 7.78 (s, 1H), 4.80 (s, 2H), 4.48 (s, 2H). ESI-MS calc. For C8H8F3N3: 203.07; Found: 204 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07393844B2
Source datasetuspto-grants-2008_07
ORD IDord-f357a1256ddc466287914b1ed68eb87e
Source noteuspto-grants-2008_07