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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1724607Generated: October 27, 2026

3-Pyridinecarboxaldehyde → 2-[3-[(Z)-[(E)-(3-methyl-1,3-benzothiazol-2-ylidene)hydrazinylidene]methyl]pyridin-1-ium-1-yl]ethanol bromide

https://huagongshe.com/reaction/1724607

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-PyridinecarboxaldehydeHCID 10371—
ReactantEthanol, 1-bromo-HCID 14202443—
Reactant(E)-3-methyl-N-(pyridin-3-ylmethylideneamino)-1,3-benzothiazol-2-imineHCID 87882106—
SolventAcetonitrileHCID 6342—
Product2-[3-[(Z)-[(E)-(3-methyl-1,3-benzothiazol-2-ylidene)hydrazinylidene]methyl]pyridin-1-ium-1-yl]ethanol bromideHCID 87674072—

Reaction Steps

1.21 g (4.51 mmol) of nicotine aldehyde ((2E)-3-methyl-1,3-benzothiazol-2(3H)-ylidene hydrazone from Step 1 and 0.85 g (6.76 mmol) of bromoethanol in acetonitrile were heated at reflux for 2 hours. After the solvent was removed, the precipitate was suction-filtered off, washed with ethyl acetate and dried under vacuum.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07488353B2
Source datasetuspto-grants-2009_02
ORD IDord-3e6ee7708e93420a809ba01ad8980809
Source noteuspto-grants-2009_02