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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 25895Generated: October 25, 2026

Pyridine → 8-(1-methyl-1H-tetrazole-5-ylcarbamoyl)quinoline

https://huagongshe.com/reaction/25895

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantThionyl ChlorideHCID 24386—
Reactant8-Quinolinecarboxylic acidHCID 66582—
Reactant1-methyl-1H-tetrazol-5-amineHCID 138492—
SolventWaterHCID 962—
Product8-(1-methyl-1H-tetrazole-5-ylcarbamoyl)quinolineHCID 13192304—

Reaction Conditions

Temperature70 °C

Reaction Steps

A mixture of 2.4 g. (0.020 mole) of 8-quinolinecarboxylic acid and 3.0 g. (0.030 mole) of 5-amino-1-methyltetrazole is stirred in 30 ml. of pyridine at 20° C. while adding 2.0 ml. of thionyl chloride dropwise. The mixture is heated at 70° C. for one hour. The reaction mixture is evaporated to provide a residue which is diluted with water. The solid is separated by filtration and recrystallized from acetic acid with decolorizing charcoal. The product is recrystallized a second time from acetic acid to provide 8-(1-methyl-1H-tetrazole-5-yl-carbamoyl)quinoline, m.p. 224°-225° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04147694
Source datasetuspto-grants-1979_04
ORD IDord-5f8e2eace96a4a629a7b0b416dcdcf5b
Source noteuspto-grants-1979_04