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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 626787Generated: October 25, 2026

Triethylamine → HCID 178509786, compound

https://huagongshe.com/reaction/626787

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant2-Amino-3-fluorobenzonitrileHCID 2783392—
Reactant4-Azido-5-fluoropyridine-3-carbaldehydeHCID 86697053—
CatalystTitanium TetrachlorideHCID 24193—
SolventDichloromethaneHCID 6344—
ProductHCID 178509786HCID 178509786—

Reaction Conditions

Temperature0 °C

Reaction Steps

A solution of 4-azido-5-fluoropyridine-3-carbaldehyde (3.66 g, 22.1 mmol) and 2-amino-3-fluorobenzonitrile (3.0 g, 22.05 mmol) in DCM (73 mL) was cooled to 0° C. under an atmosphere of nitrogen. Triethylamine (9.1 mL, 66.0 mmol) was added, followed by dropwise addition of titanium (IV) chloride solution (1 N in DCM, 13.15 mL, 13.15 mmol). The reaction mixture was stirred at 0° C. for 2 hours, then at room temperature overnight. The resultant mixture was concentrated under reduced pressure to afford the title compound as a beige residue (5.19 g, 83% yield). This material was used in the next step without purification. LCMS (Method C): RT=3.49 min, m/z: 257 [M−N2].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09309240B2
Source datasetuspto-grants-2016_04
ORD IDord-e2f78457d27b4db08f327140143255ea
Source noteuspto-grants-2016_04