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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2094445Generated: October 30, 2026

Pyridine → HCID 66880351, compound

https://huagongshe.com/reaction/2094445

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantIsonicotinic AcidHCID 5922—
Reactant1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 15908—
ReactantHCID 58148233HCID 58148233—
SolventWaterHCID 962—
ProductHCID 66880351HCID 6688035145.7%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 2.0 g of 6-amino-1,1,3,3-tetrafluoro-5-hydroxy-1,3-dihydroisobenzofuran, 1.1 g of isonicotinic acid, 2.23 g of WSC and 15 ml of pyridine was stirred while heating at 80° C. for three hours. The reaction mixture was cooled to room temperature, and then water was poured into the reaction mixture. Precipitated solid was filtered and washed with water and dried under reduced pressure to give 1.34 g of N-(1,1,3,3-tetrafluoro-6-hydroxy-1,3-dihydroisobenzofuran-5-yl)isonicotinamide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08445522B2
Source datasetuspto-grants-2013_05
ORD IDord-2967de37dcf44571a860fc6da9b173f3
Source noteuspto-grants-2013_05