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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1876157Generated: October 31, 2026

Ammonium fluoride → HCID 59242038, compound

https://huagongshe.com/reaction/1876157

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium fluorideHCID 25516—
Reactant2-chloro-N-(4-methoxyphenyl)-N-methylquinazolin-4-amineHCID 11738112—
SolventDichloromethaneHCID 6344—
SolventN-methyl-2-pyrrolidoneHCID 13387—
ProductHCID 59242038HCID 5924203810%

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of 2-chloro-N-(4-methoxyphenyl)-N-methylquinazolin-4-amine 0.150 g (0.5 mmol) and NH4F 0.5 g in 1-methyl-2-pyrrolidinone 3 mL was stirred at 120° C. for 16 h. The reaction mixture was diluted with CH2Cl2 10 mL and directly subjected to gradient column chromatography (EtOAc/hexanes, 0% to 100%) to give the crude titled compound product in 10% yield, which was further purified with preparative HPLC. 1H NMR (CD3OD, 400 MHz): δ 7.48-7.43 (m, 1H), 7.25-7.19 (m, 3H), 7.02 (d, 2H, J=9.0 Hz), 6.82-6.73 (m, 2H), 3.84 (s, 3H), 3.58 (s, 3H). 19F NMR (CD3OD):−77 (s). m/e: 284.1 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08309562B2
Source datasetuspto-grants-2012_11
ORD IDord-8fd51fc652d3494fb140855eed34a810
Source noteuspto-grants-2012_11