Thionyl Chloride → 2,4-Pentadienoyl chloride, 5-phenyl-

HRID 566172

Reaktionsgleichung

Reaktionsgleichung von HRID 566172
[CH:1](=[CH:10][C:11]([OH:13])=O)[CH:2]=[CH:3][C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1.S(Cl)([Cl:16])=O>>[CH:1](=[CH:10][C:11]([Cl:16])=[O:13])[CH:2]=[CH:3][C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1

Komponenten

3

Edukt 2

HCID 24386Thionyl ChlorideHCID 737775-Phenyl-2,4-pentadienoic acid

Produkt 1

HCID 30848092,4-Pentadienoyl chloride, 5-phenyl-

Reaktionsbedingungen

Temperatur
45 °C

Versuchsvorschrift

Cinnamylidene acetyl chloride was prepared by stirring approximately 17.15 gms of cinnamylidene acetic acid with 30 ml thionyl chloride in 300 ml of petroleum ether for 12 hours at room temperature. The reaction mixture was then refluxed for 4 hours in an oil bath at a temperature of approximately 40 to 50° C. The excess thionyl chloride and the petroleum ether were removed under reduced pressure. 1HNMR: 3=6.2 ppm (d, 2H), δ=6.9 ppm (q, 2H), δ=7.5 ppm (m, 5H). UV (in dichloromethane): λmax=333 nm, λmin=256 nm.

Aufarbeitung

  1. customThe excess thionyl chloride and the petroleum ether were removed under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-f0f164bb30334cccbde495fdb84547e3
Quelldatensatz
uspto-grants-2001_01
Patentnummer
US06174645B1

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