Diazomethane → 3-(2',4'-Difluoro-4-biphenylyl)-2-butenoic acid methyl ester

HRID 26921Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 26921
[F:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[C:9]1[CH:14]=[CH:13][C:12]([C:15]([CH3:20])=[CH:16][C:17]([OH:19])=[O:18])=[CH:11][CH:10]=1.[N+](=[CH2:23])=[N-]>C1COCC1>[CH3:23][O:18][C:17](=[O:19])[CH:16]=[C:15]([C:12]1[CH:13]=[CH:14][C:9]([C:3]2[CH:4]=[CH:5][C:6]([F:8])=[CH:7][C:2]=2[F:1])=[CH:10][CH:11]=1)[CH3:20]

Komponenten

4

Versuchsvorschrift

1 g. of 3-(2',4'-difluoro-4-biphenylyl)-2-butenoic acid is dissolved in 10 ml. of THF and an ethereal solution of diazomethane is added dropwise, with stirring, until no further evolution of nitrogen is observed. After 20 minutes, the mixture is evaporated to give 3-(2',4'-difluoro-4-biphenylyl)-2-butenoic acid methyl ester, m.p. 90°-92°.

Aufarbeitung

  1. customthe mixture is evaporated

Quellen und Nachweise

ORD-Eintrag
ord-c6770c4a66034c95bef89287f848c826
Quelldatensatz
uspto-grants-1979_04
Patentnummer
US04151302

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