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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 485Generated: October 23, 2026

4-(1H-imidazol-1-yl)aniline → 8-(4-Imidazol-1-ylanilino)-4-methyl-2-phenyl-2,3-dihydropyrido[3,2-f][1,4]oxazepin-5-one

https://huagongshe.com/en/reaction/485

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-(1H-imidazol-1-yl)anilineHCID 320165—
Reactant8-Chloro-4-methyl-2-phenyl-3,4-dihydropyrido[3,2-F][1,4]oxazepin-5(2H)-oneHCID 59577825—
ReagentCesium carbonateHCID 10796—
Catalyst2-(Dicyclohexylphosphino)biphenylHCID 2734216—
CatalystPalladium (II) acetateHCID 4144353—
Solvent1,2-DimethoxyethaneHCID 8071—
Product8-(4-Imidazol-1-ylanilino)-4-methyl-2-phenyl-2,3-dihydropyrido[3,2-f][1,4]oxazepin-5-oneHCID 4982023537.83%

Reaction Conditions

Temperature100 °C

Reaction Steps

8-chloro-4-methyl-2-phenyl-3,4-dihydropyrido[3,2-f][1,4]oxazepin-5(2H)-one (115 mg, 0.40 mmol), 4-(1H-imidazol-1-yl)aniline (95 mg, 0.60 mmol), PdOAc2 (8.94 mg, 0.04 mmol), biphenyl-2-yldicyclohexylphosphine (13.96 mg, 0.04 mmol) and CS2CO3 (389 mg, 1.19 mmol) were placed in a microwave vial equipped with a stirring bar. The vial was capped and flushed with argon. DME (1.5 mL) was added via a syringe and the mixture was heated to 100°C in a microwave apparatus for 1 h. The residue was diluted with ethyl acetate and filtered through a short plug og Celite. The filtrate was evaporated and the residue was purified by HPLC to give 62 mg of the product as a solid.

Provenance & Evidence

Source dataset750 AstraZeneca ELN dataset
ORD IDord-b03de5e7ee154175b8ccb76d7202e229
Source note750 AstraZeneca ELN dataset