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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 921415Generated: October 27, 2026

Potassium Carbonate → 1-(3-Methoxy-4-nitrophenyl)-4-methyl-1,4-azaphosphinane 4-oxide

https://huagongshe.com/reaction/921415

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant5-Fluoro-2-nitroanisoleHCID 2779250—
Reactant4-Methyl-1,4lambda5-azaphosphinan-4-oneHCID 55298899—
SolventDimethylformamideHCID 6228—
Product1-(3-Methoxy-4-nitrophenyl)-4-methyl-1,4-azaphosphinane 4-oxideHCID 6815698896%

Reaction Conditions

Temperature50 °C

Reaction Steps

A mixture of 4-methyl-[1,4]azaphosphinane-4-oxide (133 mg, 1.00 mmol), 5-fluoro-2-nitroanisole (340 mg, 2.00 mmol), K2CO3 (345 mg, 2.50 mmol), and DMF (5 mL) was heated to 50° C. After 2 h, the reaction mixture was concentrated and purified by silica gel chromatography (0-5% 7N ammonia in methanol:dichloromethane) to afford 1-(3-methoxy-4-nitrophenyl)-4-methyl-1,4-azaphosphinane 4-oxide as a bright yellow solid (272 mg, 96% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09273077B2
Source datasetuspto-grants-2016_03
ORD IDord-e393424610ab4fddb70d303e5d3a6fbb
Source noteuspto-grants-2016_03