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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 341219Generated: October 31, 2026

Pyridine → HCID 59321155, compound

https://huagongshe.com/reaction/341219

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant4-Toluenesulfonyl chlorideHCID 7397—
Reactant3-Iodo-imidazo[1,2-a]pyridine-7-carboxylic acid N'-(2,2-dimethylpropionyl) hydrazideHCID 59320790—
SolventTetrahydrofuranHCID 8028—
ProductHCID 59321155HCID 593211558.4%

Reaction Conditions

Temperature70 °C

Reaction Steps

3-Iodo-imidazo[1,2-a]pyridine-7-carboxylic acid N′-(2,2-di methyl propionyl) hydrazide (875 mg, 2.27 mmol) was suspended in anhydrous THF (15 mL) under a nitrogen atmosphere. Pyridine (0.388 mL, 4.76 mmol) and tosyl chloride (518 mg, 2.72 mmol) were added and the mixture was heated to 70° C. overnight. The reaction was cooled and partitioned between EtOAc and 1M HCl. The aqueous fraction was basified with 2M sodium carbonate solution and extracted with CH2Cl2. The organic phase was dried through a phase separation cartridge and evaporated to give 7-(5-tert-Butyl-[1,3,4]-oxadiazol-2-yl)-3-iodo-imidazo[1,2-a]pyridine (70 mg) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08895745B2
Source datasetuspto-grants-2014_11
ORD IDord-f7c9678716f34ae9a1a673025af09c86
Source noteuspto-grants-2014_11