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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1108248Generated: October 31, 2026

Ethanol → HCID 21196274, compound

https://huagongshe.com/reaction/1108248

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 title 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 numberUS06066638
Source datasetuspto-grants-2000_05
ORD IDord-5905590d114344df82c850215802f094
Source noteuspto-grants-2000_05