Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 713265Generated: November 2, 2026

Ammonium Chloride → HCID 118159351, compound

https://huagongshe.com/reaction/713265

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantDiisopropylethylamineHCID 81531—
Reactant2,2-DifluoroethanamineHCID 136274—
ReactantHCID 118159353HCID 118159353—
SolventDichloromethaneHCID 6344—
ProductHCID 118159351HCID 11815935195%

Reaction Steps

A solution of 2,3-dichloro-7-methylpyrido[3,4-b]pyrazine (125 mg, 0.584 mmol), 2,2-difluoroethanamine (53.6 μL, 0.701 mmol), and DIPEA (306 μL, 1.752 mmol) in DCM (1.17 mL) was stirred at room temperature for 48 h, then poured into a saturated aqueous solution of NH4Cl and extracted twice with EtOAc. The extracts were combined, filtered through MgSO4, and concentrated to give 3-chloro-N-(2,2-difluoroethyl)-7-methylpyrido[3,4-b]pyrazin-2-amine (143 mg, 95%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09181249B2
Source datasetuspto-grants-2015_11
ORD IDord-7d2c12012ce84680a40faf7ee75deefa
Source noteuspto-grants-2015_11