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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1848246Generated: October 31, 2026

Acetic Acid → HCID 86681219, compound

https://huagongshe.com/reaction/1848246

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantMethanolHCID 887—
ReactantHCID 86681218HCID 86681218—
CatalystZincHCID 23994—
SolventDichloromethaneHCID 6344—
ProductHCID 86681219HCID 86681219100%

Reaction Conditions

Temperature0 °C

Reaction Steps

To a mixture of N-((2-(methylthio)benzo[d]thiazol-6-yl)methyl)-3-nitro-5-(trifluoromethyl)pyridin-2-amine (0.97 g, 2.42 mmol), HOAc (4 mL), and MeOH (4 mL) in DCM (30 mL) cooled in ice-water bath was slowly added zinc dust (1.6 g, 24.2 mmol). The reaction mixture was stirred at 0° C. for 2 h. The mixture was filtered and the filtrate was diluted with DCM and then washed with water and aq NaHCO3. The organic layer was dried over Na2SO4, filtered and concentrated under reduced pressure to afford N2-((2-(methylthio)benzo[d]thiazol-6-yl)methyl)-5-(trifluoromethyl)pyridine-2,3-diamine (0.89 g, 100%). 1H NMR (300 MHz, DMSO-d6) δ 8.05 (s, 1H), 7.82 (d, J=8.4 Hz, 1H), 7.77 (s, 1H), 7.44-7.41 (m, 1H), 7.03 (d, J=1.8 Hz, 1H), 4.84 (br s, 1H), 4.78 (d, J=5.1 Hz, 2H), 3.29 (br s, 2H), 2.79 (s, 3H). LCMS (ESI) m/z 371 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08952058B2
Source datasetuspto-grants-2015_02
ORD IDord-6ea7e110080e4fbeb429c5ad99b17fb1
Source noteuspto-grants-2015_02