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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1050444Generated: November 2, 2026

Sodium Thiosulfate → HCID 90273223, compound

https://huagongshe.com/reaction/1050444

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium ThiosulfateHCID 24477—
ReactantN-IodosuccinimideHCID 120273—
Reactant2,6-Dimethyl-3-nitropyridin-4-olHCID 549205—
SolventAcetic AcidHCID 176—
ProductHCID 90273223HCID 9027322369.7%

Reaction Conditions

Temperature105 °C

Reaction Steps

To a suspension of 2,6-dimethyl-3-nitropyridin-4(1H)-one (0.44 g, 2.62 mmol) in acetic acid (13 mL) was added NIS (0.765 g, 3.40 mmol). The mixture was heated at 105° C. for 2 h, at which time it was poured into ice water (100 mL). The mixture was stirred for 15 min and cooled in a freezer for 15 min. To the cooled mixture was added 0.1M Na2S2O3 (1-2 mL) with swirling The solids were filtered, washed with water, air dried for 5 min, and further dried in a vacuum oven for 4 h to give 3-iodo-2,6-dimethyl-5-nitropyridin-4(1H)-one (596 mg, 1.824 mmol, 69.7% yield). 1H NMR (400 MHz, DMSO-d6) δ 2.28-2.31 (m, 3 H) 12.32 (br. s., 1 H). MS(ES) [M+H]+ 294.9.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09382234B2
Source datasetuspto-grants-2016_07
ORD IDord-0298f4fd1a9546b0a8f667847d6702f3
Source noteuspto-grants-2016_07