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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 626193Generated: October 29, 2026

Triethylamine → HCID 178502673, compound

https://huagongshe.com/reaction/626193

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 15908—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantMethanamine, N-methoxy-, hydrochloride (1:1)HCID 81138—
ReactantHCID 178418479HCID 178418479—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
ProductHCID 178502673HCID 17850267353.5%

Reaction Steps

To a stirred solution of 6-hydroxynicotinic acid (5.0 g, 1.0 eq), EDCI (8.3 g, 1.2 eq) and HOBt (5.8 g, 1.2 eq) in 150 mL CH2Cl2 were added N-methoxymethanamine hydrochloride (4.2 g, 1.2 eq) and Et3N (14.5 g, 4.0 eq) at rt, the mixture was stirred at rt overnight, water was added, and the mixture was extracted with CH2Cl2. The extract was dried, concentrated, and purified by column chromatography to give the desired product (3.5 g, 53% yield). 1H NMR (400 MHz, DMSO-d6) δ 11.82 (brs, 1H), 7.87 (d, J=2.8 Hz, 1H), 7.72 (dd, J=9.6 Hz, 2.8 Hz, 1H), 6.32 (d, J=9.6 Hz, 1H), 3.59 (s, 3H), 3.20 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09309211B2
Source datasetuspto-grants-2016_04
ORD IDord-e341f8738ae245b796062dc4249f3b80
Source noteuspto-grants-2016_04