Benzene, 1-bromo-3,5-dichloro- → 3,5-Dichloro-alpha-methylstyrene

HRID 904094

Reaktionsgleichung

Reaktionsgleichung von HRID 904094
BrC1C=C(Cl)C=C(Cl)C=1.[Mg].[Cl:11][C:12]1[CH:13]=[C:14]([C:19](O[Mg]Br)([CH3:21])[CH3:20])[CH:15]=[C:16]([Cl:18])[CH:17]=1>CC(C)=O>[Cl:11][C:12]1[CH:13]=[C:14]([CH:15]=[C:16]([Cl:18])[CH:17]=1)[C:19]([CH3:21])=[CH2:20]

Komponenten

5

Edukt 3

HCID 29766Benzene, 1-bromo-3,5-dichloro-HCID 5462224MagnesiumHCID 178459949HCID 178459949, Verbindung

Produkt 1

HCID 1106043,5-Dichloro-alpha-methylstyrene

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 180AcetoneLösungsmittel

Versuchsvorschrift

1-Bromo-3,5-dichlorobenzene is reacted with magnesium in a solvent and acetone is added to react it with the reaction product and a mineral acid is added to hydrolyze the resulting α-(3,5-dichlorophenyl) isopropoxymagnesium bromide and then, the product is dehydrated to obtain 3,5-dichloro-α-methylstyrene. 3,5-Dichloro-α-methylstyrene is useful intermediate for various agricultural chemicals, medicines and dyes and also useful monomer for rubbers, plastics and resins.

Aufarbeitung

  1. additionis added
  2. customto react it with the reaction product
  3. additiona mineral acid is added

Quellen und Nachweise

ORD-Eintrag
ord-e2c0e6b77a3d477aab742cd438eede04
Quelldatensatz
uspto-grants-1980_10
Patentnummer
US04230642

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