Triethylamine → HCID 178502677, compound

Participants

Role	Name	HCID	Charge
Reactant	Triethylamine	HCID 8471	—
Reactant	Methanamine, N-methoxy-, hydrochloride (1:1)	HCID 81138	—
Reactant	Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)	HCID 9886157	—
Reactant	HCID 178524578	HCID 178524578	—
Solvent	Dichloromethane	HCID 6344	—
Product	HCID 178502677	HCID 178502677	80%

Reaction Steps

A 500-mL single-neck round-bottomed flask equipped with a magnetic stirrer was charged with 3-nitro-1H-pyrazole-5-carboxylic acid (15.7 g, 1.0 eq., 100 mmol), N,O-dimethylhydroxylamine hydrochloride (19.5 g, 2.0 eq., 200 mmol), HATU (76.0 g, 2.0 eq., 200 mmol), triethylamine (40.4 g, 4.0 eq., 400 mmol), and dichloromethane (300 mL). The reaction mixture was stirred at room temperature for overnight. The solvent was removed under reduced pressure. The resulting residue was purified by silica-gel column chromatography eluting with 100:1 dichloromethane/methanol to afford 287a (16.0 g, 80%) as white solid. MS-ESI: [M+H]+ 201.1

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08716274B2
Source dataset	uspto-grants-2014_05
ORD ID	ord-1e06132a2f1b4f2b9187287d429867c8
Source note	uspto-grants-2014_05