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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1811142Generated: October 31, 2026

1,2-Dichloroethane → HCID 59375058, compound

https://huagongshe.com/reaction/1811142

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
ReactantAmmonium HydroxideHCID 14923—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantHCID 66606744HCID 66606744—
SolventDichloromethaneHCID 6344—
SolventTetrahydrofuranHCID 8028—
SolventEthyl AcetateHCID 8857—
ProductHCID 59375058HCID 5937505831%

Reaction Conditions

Temperature50 °C

Reaction Steps

Step 5 A solution of 5-(2-fluorophenyl)-2,3,4,9-tetrahydro-1H-carbazole-8-carboxylic acid (0.097 g, 0.314 mmol), EDC (0.072 g, 0.376 mmol) and HOBT (0.058 g, 0.376 mmol) in THF (2.5 mL) and DCM (0.6 mL) was treated with 28% aqueous ammonium hydroxide (0.073 mL, 1.88 mmol). The mixture was stirred overnight. More EDC (0.072 g, 0.376 mmol), HOBT (0.058 g, 0.376 mmol) and 28% aqueous ammonium hydroxide (0.073 mL, 1.88 mmol) were added, and the mixture was heated at 50° C. in a sealed tube for 2 days. The mixture was cooled to rt, dissolved in EtOAc, washed with NaHCO3 (aq) and brine, dried and concentrated. The residue was purified by column chromatography (eluting with a gradient from DCM to 98:2 DCM-methanol) to give 5-(2-fluorophenyl)-2,3,4,9-tetrahydro-1H-carbazole-8-carboxamide (0.030 g, 30%) as an off-white solid. Mass spectrum m/z 309.0 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08362065B2
Source datasetuspto-grants-2013_01
ORD IDord-c1e98c0937ef4cd7bc73d175a12faa18
Source noteuspto-grants-2013_01