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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1453106Generated: November 2, 2026

Sodium Hydroxide → HCID 22392577, compound

https://huagongshe.com/reaction/1453106

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantPhosphorus trichlorideHCID 24387—
ReactantHCID 570528HCID 570528—
SolventDichloromethaneHCID 6344—
ProductHCID 22392577HCID 22392577—

Reaction Steps

A solution of phosphorous trichloride (7.2 mL, 82 mmol) in CH2Cl2 was added to a cooled 0° C. solution of 2-ethyl-4-nitro-pyridine 1-oxide (3 g, 17.8 mmol) in CH2Cl2. The reaction was stirred for 2 hours and then warmed up to rt. After 3 hours the mixture was poured into ice, made basic with 15% NaOH and extracted with EtOAc. The organic extracts were dried over Na2SO4 and concentrated to a yellow oil that solidified on standing (2.56 g, 95%). 1H NMR (400 MHz, CDCl3): δ 1.40 (t, J=7.6 Hz, 3H), 3.14 (d, J=7.6 Hz, 2H), 8.04 (d, J=5.6 Hz, 1H), 8.06 (s, 1H), 8.92 (d, J=5.6 Hz, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07473790B2
Source datasetuspto-grants-2009_01
ORD IDord-a9e395bbf18b4f3780ed6224788e5827
Source noteuspto-grants-2009_01