Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2101928Generated: October 30, 2026

Sodium Hydroxide → HCID 57800231, compound

https://huagongshe.com/reaction/2101928

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
Reactant1-Acetyl-5-bromo-2-methyl-4-(trifluoromethyl)-2,3-dihydro-1H-indoleHCID 57800254—
SolventMethanol--water (1/1)HCID 22242641—
ProductHCID 57800231HCID 5780023179.5%

Reaction Steps

A mixture of 1-acetyl-5-bromo-2-methyl-4-(trifluoromethyl)-2,3-dihydro-1H-indole (0.130 g, 0.404 mmol; step B above) and NaOH (0.086 g; 2.15 mmol) in MeOH/H2O (4:1; 13 mL) was heated at reflux 3 h. The solvent was removed, the residue was partitioned between Et2O/H2O, and the layers were separated. The aqueous layer was extracted with Et2O (×2). Combined organics were washed (H2O, brine), dried over Na2SO4, filtered and concentrated in vacuo, affording 0.090 g of the title compound as a pale yellow oil which was used without further purification: MS (APCl) m/z 282 (M+H, 81Br).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07572820B2
Source datasetuspto-grants-2009_08
ORD IDord-68b8ea030c9d46b897cf5b475ab296e4
Source noteuspto-grants-2009_08