Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 57388Generated: October 29, 2026

Hydrazine → (S)-1-(5-(4-chlorophenyl)oxazol-2-yl)ethanamine

https://huagongshe.com/reaction/57388

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazineHCID 9321—
Reactant(S)-2-(1-(5-(4-chlorophenyl)oxazol-2-yl)ethyl)isoindoline-1,3-dioneHCID 90414733—
SolventEthanolHCID 702—
Product(S)-1-(5-(4-chlorophenyl)oxazol-2-yl)ethanamineHCID 4204810873.7%

Reaction Conditions

Temperature80 °C

Reaction Steps

Hydrazine (0.55 ml, 6.09 mmol) was added to a solution of (S)-2-(1-(5-(4-chlorophenyl)oxazol-2-yl)ethyl)isoindoline-1,3-dione (430 mg, 1.219 mmol) in ethanol (15 ml) and heated at 80° C. for 13 hours. The reaction was concentrated in vacuo. Flash column chromatography (silica, 40 g) eluting with 2-10% MeOH/DCM afforded the desired product (200 mg, yellow oil). 1H NMR (400 MHz, CDCl3) δ 7.67-7.51 (m, 9H), 7.47-7.35 (m, 8H), 7.31-7.21 (m, 1H), 4.25 (q, J=6.8 Hz, 4H), 1.97-1.66 (m, 15H), 1.63-1.48 (m, 2H). HRMS(B) tR=1.49 min; MS m/z 222.0560

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09434719B2
Source datasetuspto-grants-2016_09
ORD IDord-e945619f346d4e7185708695a18d7d11
Source noteuspto-grants-2016_09