Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1505218Generated: October 31, 2026

1,1'-Carbonyldiimidazole → HCID 53476589, compound

https://huagongshe.com/reaction/1505218

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
Reactant5-(Aminomethyl)-2-(trifluoromethyl)pyridineHCID 2737718—
Reactant8-Amino-2H-1,4-benzoxazin-3(4H)-oneHCID 11593488—
SolventDimethylformamideHCID 6228—
SolventTetrahydrofuranHCID 8028—
ProductHCID 53476589HCID 5347658942%

Reaction Conditions

Temperature70 °C

Reaction Steps

To a solution of 3-aminomethyl-6-trifluoromethylpyridine (1 g, 4.7 mmol) in THF (30 mL) was added CDI (2.1 mol eq) and the mixture was heated at 70° C. overnight. The reaction mixture was evaporated, water was added and the aqueous phase was extracted with EtOAc (3×20 mL). The recombined organic phases were anhydrified over Na2SO4 and evaporated at reduced pressure. The oil obtained (0.8 g, 2.96 mmol) was dissolved in DMF (20 mL) and the bicyclic amine 1f was added (0.8 mol eq, 0.47 g), then the mixture obtained was heated at 100° C. overnight. The solvent was removed at reduced pressure and the residue was purified by chromatography (100% EtOAc) to obtain the product as a pale yellow solid (0.37 g, 42% Yield). 1HNMR (DMSO, 200 MHz) δ 4.39 (d, 2H, J=6), 4.61 (s, 2H), 6.46 (dd, 1H, J=2), 6.81 (t, 1H, J=8), 7.43 (t, 1H), 7.68 (dd, 1H, J=2), 7.90 (m, 2H), 8.18 (s, 1H), 8.69 (s, 1H), 10.66 (s, 1H). [M+1] 355.88 (C15H13F3N3O3 requires 355.27).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09216975B2
Source datasetuspto-grants-2015_12
ORD IDord-2dc5fe89b7f0480fb049b28a9719f727
Source noteuspto-grants-2015_12