Hydrochloric Acid → 3,4-Dimethyl-2-pentenoylchloride

HRID 1702963Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1702963
[CH3:1][C:2]([CH:9]([CH3:11])[CH3:10])=[CH:3][C:4](OCC)=[O:5].S(Cl)([Cl:14])=O.Cl>C1C=CC=CC=1>[CH3:1][C:2]([CH:9]([CH3:11])[CH3:10])=[CH:3][C:4]([Cl:14])=[O:5]

Komponenten

5

Edukt 3

HCID 313Hydrochloric AcidHCID 24386Thionyl ChlorideHCID 281491Ethyl 3,4-dimethyl-2-pentenoate

Produkt 1

HCID 541273923,4-Dimethyl-2-pentenoylchloride

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 241BenzeneLösungsmittel

Versuchsvorschrift

3,4-Dimethyl-2-pentenoic acid (XI, 4.1 g) was heated to a gentle boil with thionyl chloride (50 g) in benzene (50 mL) until the generation of hydrochloric acid gas ceased. Removal of the excess thionyl chloride and benzene by evaporation in vacuo followed by a distillation of the reaction product gave pure 3,4-dimethyl-2-pentenoylchloride (IX, 64° C. (9.5 mm)).

Aufarbeitung

  1. customRemoval of the excess thionyl chloride and benzene
  2. customby evaporation in vacuo
  3. distillationfollowed by a distillation of the reaction product

Quellen und Nachweise

ORD-Eintrag
ord-ca025f933d654ceab519a593a8a60d57
Quelldatensatz
uspto-grants-1982_09
Patentnummer
US04350638

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