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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1908371Generated: October 28, 2026

Water → HCID 59129194, compound

https://huagongshe.com/reaction/1908371

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantN-bromobutanimideHCID 67184—
ReactantMethyl 1-(4-aminophenyl)cyclopropane-1-carboxylateHCID 58841079—
SolventAcetonitrileHCID 6342—
ProductHCID 59129194HCID 5912919478.5%

Reaction Steps

To a solution of methyl 1-(4-aminophenyl)cyclopropanecarboxylate (10.38 g, 0.05 mol) in acetonitrile (200 mL) was added NBS (9.3 g, 0.05 mol) at room temperature. The mixture was stirred overnight. Water (200 mL) was added. The organic layer was separated and the aqueous phase was extracted with EtOAc (80 mL×3). The organic layers were dried with anhydrous Na2SO4 and evaporated to give methyl 1-(4-amino-3-bromophenyl)cyclopropanecarboxylate (10.6 g, 78%), which was used directly in the next step. 1H NMR (400 MHz, CDCl3) δ 7.38 (d, J=2.0 Hz, 1H), 7.08 (dd, J=1.6, 8.4 Hz, 1H), 6.70 (d, J=8.4 Hz, 1H), 3.62 (s, 3H), 1.56-1.54 (m, 2H), 1.14-1.11 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08598181B2
Source datasetuspto-grants-2013_12
ORD IDord-5c0d25b8160c46d788302958dd96c9bb
Source noteuspto-grants-2013_12