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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2212610Generated: November 2, 2026

HCID 21966470, compound → HCID 21966445, compound

https://huagongshe.com/reaction/2212610

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 21966470HCID 21966470—
ReactantTetra-n-butylammonium tribromideHCID 23500184—
SolventDichloromethaneHCID 6344—
ProductHCID 21966445HCID 2196644599%

Reaction Steps

To a solution of N-(3-methoxy-4-methyl-phenyl)-isobutyramide (5.0 g, 24.1 mmol) in dichloromethane (200 mL) was added tetrabutylammonium tribromide (12.2 g, 25.3 mmol) at 0° C. The mixture was then stirred at room temperature for 20 hours. The solution was washed with water, brine, aqueous sodium bicarbonate solution, brine, dried over MgSO4, filtered and evaporated under reduced pressure to give 6.83 g of N-(2-bromo-5-methoxy-4-methyl-phenyl)-isobutyramide (99%). 1H NMR (300 MHz, CDCl3, ppm): δ: 1.29 (d, J=7.03 Hz, 6 H), 2.15 (s, 3 H), 2.59 (m, 1 H), 3.84 (s, 1 H), 7.24 (s, 1 H), 7.65 (bs, 1 H), 8.08 (s, 1 H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07102000B2
Source datasetuspto-grants-2006_09
ORD IDord-7daf52d7f33844489f803b64c441dd38
Source noteuspto-grants-2006_09