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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1945463Generated: October 31, 2026

Dichloromethane → HCID 24812203, compound

https://huagongshe.com/reaction/1945463

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantMethyl 3-amino-4-hydroxybenzoateHCID 10815—
ReactantSodium HydroxideHCID 14798—
Reactant(4-Adamantan-1-yl-phenoxymethyl)acetic acidHCID 16772355—
SolventTrimethyl(phosphooxy)silaneHCID 16133246—
ProductHCID 24812203HCID 2481220364.1%

Reaction Conditions

Temperature140 °C

Reaction Steps

A mixture of (4-adamantan-1-yl-phenoxymethyl)-acetic acid (200.0 mg, 0.70 mmol) and 3-amino-4-hydroxy-benzoic acid methyl ester (164.3 mg, 0.98 mmol) in PPSE (3 mL) was heated at 140° C. for 2 h. At the end of the reaction period, the mixture was taken to dichloromethane and neutralized with 1 N NaOH solution. The organic layer was separated and the aqueous solution extracted with dichloromethane. The combined extracts were dried over anhydrous MgSO4, filtered and the solvent was removed with rotary evaporator under reduced pressure. The residue was purified by flash chromatography (n-Hexane:EtoAc:MeOH=6:3:1) to afford 2-(4-adamantan-1-yl-phenoxymethyl)-benzoxazole-5-carboxylic acid methyl ester as a white solid (187.3 mg, 64.1% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08394799B2
Source datasetuspto-grants-2013_03
ORD IDord-c8c6abfa0e8642a8ae145363186a44ef
Source noteuspto-grants-2013_03