Oxalyl chloride → HCID 21833062, Verbindung

HRID 582503Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 582503
[C:1]([C:4]1[O:5][C:6]2[C:7](=[C:9]([C:15]([OH:17])=O)[CH:10]=[CH:11][C:12]=2[O:13][CH3:14])[CH:8]=1)(=[O:3])[CH3:2].C(Cl)(=O)C([Cl:21])=O>ClCCl.CN(C)C=O>[C:1]([C:4]1[O:5][C:6]2[C:7](=[C:9]([C:15]([Cl:21])=[O:17])[CH:10]=[CH:11][C:12]=2[O:13][CH3:14])[CH:8]=1)(=[O:3])[CH3:2]

Komponenten

5

Versuchsvorschrift

2-Acetyl-7-methoxybenzofuran-4-carboxylic acid (0.12 g) was suspended in anhydrous dichloromethane (4 ml) at room temperature under nitrogen and oxalyl chloride (0.1 ml) added followed by 3 drops of N,N-dimethylformamide. Evaporation in vacuo after 2 h afforded the title compound as a yellow solid (~0.5 g). TLC Rf 0.60 (50% ethyl acetate in hexane)

Aufarbeitung

  1. customEvaporation in vacuo after 2 h

Quellen und Nachweise

ORD-Eintrag
ord-d9c26f8cadea437291fb631ca0b302d6
Quelldatensatz
uspto-grants-1999_07
Patentnummer
US05925636

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