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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1958096Generated: November 1, 2026

Water → HCID 67281724, compound

https://huagongshe.com/reaction/1958096

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium hydrideHCID 24758—
ReactantCyclopropanemethanolHCID 75644—
Reactant3-Bromo-2-chloro-5-nitropyridineHCID 230889—
SolventDimethylformamideHCID 6228—
Product3-Bromo-2-chloro-5-nitropyridineHCID 230889—
ProductHCID 67281724HCID 6728172432%

Reaction Conditions

Temperature25 °C

Reaction Steps

To a solution of sodium hydride (2.21 g, 55.34 mmol) in anhydrous DMF (20 ml) was added cyclopropylmethanol (CAS Registry No. 2516-33-8) (12.45 ml, 153.2 mmol) under nitrogen at 0° C. and the reaction mixture was stirred at 25° C. for 30 minutes. Then 3-bromo-2-chloro-5-nitropyridine (CAS Registry No. 5470-17-7) (7.3 g, 30.74 mmol) was added drop wise at 0° C. and stirred for two hours at 25° C. Water (60m1) was added to the reaction mixture and extracted with ethyl acetate (3×100 ml). The combined organic layers were washed with water and brine, dried over Na2SO4 and evaporated under reduced pressure to get the crude residue (12 g). The crude was purified by column chromatography (2% ethyl acetate/hexane) to get the desired product (2.06 g, 32%) as light yellow solid and 1.7 g of unreacted 3-bromo-2-chloro-5-nitropyridine was recovered. MS (LC/MS): not responding, NMR is in agreement with the structure: 1H-NMR (400 MHz, CDCl3): δ 0.41 (m, 2H), 0.65 (m, 2H), 1.32 (m, 1H), 4.34 (d, 2H), 8.60 (d, 1H), 8.96 (d, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08410107B2
Source datasetuspto-grants-2013_04
ORD IDord-17f6cfacb1d8430ab8550b9e9bb743c0
Source noteuspto-grants-2013_04