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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1783685Generated: October 30, 2026

Methylamine → HCID 21106540, compound

https://huagongshe.com/reaction/1783685

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylamineHCID 6329—
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
ReactantHCID 21106539HCID 21106539—
SolventDimethylformamideHCID 6228—
SolventTetrahydrofuranHCID 8028—
ProductHCID 21106540HCID 2110654077.9%

Reaction Steps

4-(4-Bromo-1-oxo-1H-phthalazin-2-yl)benzoic acid (0.15 g, 0.43 mmol) and 1,1′-carbonyldiimidazol (0.10 g, 0.65 mmol) were dissolved in DMF (10 ml) at RT. Methyl amine (0.33 ml of a 2M solution in THF, 0.65 mmol) were added and stirring was continued for 4 h. Evaporation of the solvent under reduced pressure, dilution with DCM, extraction with a saturated aqueous NaHCO3 solution and evaporation of the solvent in vacuum gave the title compound (0.12 g, 77% yield) 1H-NMR: (400 MHz, D6-DMSO) 8.55 (1H, d), 8.38 (1H, d), 8.10 (1H, t), 8.03 (2H, d), 8.02 (2H, d), 7.73 (2H, d), 2.82 (3H, d).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07501410B2
Source datasetuspto-grants-2009_03
ORD IDord-3dca0241a5eb440cb1fe3dd8e9e3268d
Source noteuspto-grants-2009_03