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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1054677Generated: October 25, 2026

Ethyl Acetate → methyl 5-[4-(1-acetylazetidin-2-yl)phenyl]-6-chloro-1H-indole-3-carboxylate

https://huagongshe.com/reaction/1054677

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantPotassium CarbonateHCID 11430—
Reactantmethyl 6-chloro-5-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)-1H-indole-3-carboxylateHCID 86698665—
Reactant1-(2-(4-Bromophenyl)azetidin-1-yl)ethanoneHCID 86698679—
CatalystBis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)HCID 178418228—
SolventToluene ethanolHCID 21863594—
Productmethyl 5-[4-(1-acetylazetidin-2-yl)phenyl]-6-chloro-1H-indole-3-carboxylateHCID 8669868051%

Reaction Conditions

Temperature110 °C

Reaction Steps

A mixture of methyl 6-chloro-5-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)-1H-indole-3-carboxylate (100 mg, 0.311 mmol), 1-[2-(4-bromophenyl)azetidin-1-yl]ethanone (100 mg, 0.373 mmol), 2.0 M aqueous potassium carbonate (0.50 mL, 1.0 mmol), and Pd(dppf)Cl2 (30 mg, 0.03 mmol) in toluene/ethanol (1.44 mL/0.48 mL) was stirred at 110° C. for 2.5 hours. The mixture was poured into ethyl acetate and washed with water. The organic phase was dried over sodium sulfate, filtered, and concentrated to give a residue. This was purified by preparative TLC to give the title compound (40 mg, 51% yield) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09394285B2
Source datasetuspto-grants-2016_07
ORD IDord-45c2e0fd38014b07b034843c43c1c955
Source noteuspto-grants-2016_07