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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 503281Generated: October 29, 2026

Water → HCID 59129194, compound

https://huagongshe.com/reaction/503281

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 numberUS07776905B2
Source datasetuspto-grants-2010_08
ORD IDord-d99eabcd65bf46d0a116d60fe8caf9d2
Source noteuspto-grants-2010_08