Trifluoroacetic acid → (E)-3-[1-(4-Bromo-benzenesulfonyl)-1H-pyrrol-3-yl]acrylic acid

HRID 1445508Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1445508
C([O:5][C:6](=[O:24])/[CH:7]=[CH:8]/[C:9]1[CH:13]=[CH:12][N:11]([S:14]([C:17]2[CH:22]=[CH:21][C:20]([Br:23])=[CH:19][CH:18]=2)(=[O:16])=[O:15])[CH:10]=1)(C)(C)C.C(O)(C(F)(F)F)=O>ClCCl>[Br:23][C:20]1[CH:19]=[CH:18][C:17]([S:14]([N:11]2[CH:12]=[CH:13][C:9](/[CH:8]=[CH:7]/[C:6]([OH:24])=[O:5])=[CH:10]2)(=[O:16])=[O:15])=[CH:22][CH:21]=1

Komponenten

4

Versuchsvorschrift

A mixture of 7.0 g (E)-3-[1-(4-bromo-benzenesulfonyl)-1H-pyrrol-3-yl]-acrylic acid tert-butyl ester with 200 ml dichloromethane and 21.0 ml TFA is stirred at ambient temperature for 24 h. The dichloromethane and TFA is evaporated and the residue is coevaporated with toluene for 3 times. By this method 6.0 g of the title compound is obtained.

Aufarbeitung

  1. customThe dichloromethane and TFA is evaporated

Quellen und Nachweise

ORD-Eintrag
ord-c5c20d6075e1456aaf2c3e89d220434d
Quelldatensatz
uspto-grants-2010_02
Patentnummer
US07666868B2

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