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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1066874Generated: October 31, 2026

Ethanol → HCID 21196274, compound

https://huagongshe.com/reaction/1066874

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantTriethylamineHCID 8471—
ReactantPropyl IsothiocyanateHCID 69403—
Reactant2-Amino-5-bromopyridine-3-carboxylic acid--hydrogen bromide (1/1)HCID 57350554—
SolventDimethylformamideHCID 6228—
ProductHCID 21196274HCID 21196274—

Reaction Steps

A mixture of n-propyl isothiocyanate (1.59 g, 1.62 mL), triethylamine (5.0 g, 13.8 mL), and 5.0 g of the tide compound of Step A was heated to 100-110° C. in 22 mL of dimethylformamide for 48 h. The reaction mixture was then allowed to cool to room temperature and treated with 10 mL of ethanol. The resulting precipitate was filtered, washed with ethanol followed by hexanes and dried to deliver 2.48 g of the title compound of Step B. 1H NMR (400 MHz, Me2SO-d6): δ 0.90 (t,3H), 1.60-1.78 (m,2H), 4.30 (t,2H), 8.41 (s,1H), 8.82 (s,1H), 13.55 (s,1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06245770B1
Source datasetuspto-grants-2001_06
ORD IDord-09b4c2d49279414ca0e928787f4c4d06
Source noteuspto-grants-2001_06