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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1583070Generated: November 3, 2026

Dichloromethane → HCID 12137004, compound

https://huagongshe.com/reaction/1583070

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantEthyl AcetateHCID 8857—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
ReactantHCID 12137002HCID 12137002—
ReactantHCID 86589928HCID 86589928—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventHexaneHCID 8058—
ProductHCID 12137004HCID 12137004—

Reaction Steps

Following General Procedure D and using 8-ethynyl-2,2,4,4-tetramethyl chroman-6-carboxylic acid (Compound 26, 0.107 g, 0.415 mmol), anhydrous dichloromethane (10 mL), tert-butyl-2-fluoro-4-hydroxy phenyl acetate (Compound 14, 0.14 g, 0.62 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (0.12 g, 0.62 mmol) and 4-(dimethylamino)pyridine (0.101 g, 0.83 mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 10-15% ethyl acetate in hexane as the eluent, the title compound was obtained as a pale yellow solid (0.156 g, 92%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06740676B2
Source datasetuspto-grants-2004_05
ORD IDord-7df0934f9a824bab99beb9245cf084cb
Source noteuspto-grants-2004_05