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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1661793Generated: October 30, 2026

2-(4-Hydroxyphenyl)acetohydrazide → 4-(6-Thiazol-2-yl-[1,2,4]triazolo[4,3-b]pyridazin-3-ylmethyl)-phenol

https://huagongshe.com/reaction/1661793

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(4-Hydroxyphenyl)acetohydrazideHCID 3731866—
Reactant3-Chloro-6-thiazol-2-yl-pyridazineHCID 57654591—
Solvent1-ButanolHCID 263—
Product4-(6-Thiazol-2-yl-[1,2,4]triazolo[4,3-b]pyridazin-3-ylmethyl)-phenolHCID 5765453137.2%

Reaction Conditions

Temperature120 °C

Reaction Steps

3-Chloro-6-thiazol-2-yl-pyridazine (20 mg, 0.10 mmol) and (4-Hydroxy-phenyl)-acetic acid hydrazide (20 mg, 0.12 mmol) were combined in butanol (5 mL), fitted with water filled condenser and heated to 120° C. overnight. The reaction was concentrated in vacuo followed by purification by HPLC (10-80% CH3CN over 25 min) resulting in the title compound (11.5 mg, 37%) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08030305B2
Source datasetuspto-grants-2011_10
ORD IDord-fb4599f9ff934ff6a8a3063cafb04a1d
Source noteuspto-grants-2011_10