Ozone → Ethyl 2-[4-chloro-3-fluoro-2-formyl-6-(2-methyl-1,3-dioxolan-2-yl)phenoxy]propanoate

HRID 626859Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 626859
[Cl:1][C:2]1[CH:15]=[C:14]([C:16]2([CH3:21])[O:20][CH2:19][CH2:18][O:17]2)[C:5]([O:6][CH:7]([CH3:13])[C:8]([O:10][CH2:11][CH3:12])=[O:9])=[C:4]([CH:22]=C)[C:3]=1[F:24].[O:25]=[O+][O-]>C(Cl)Cl>[Cl:1][C:2]1[CH:15]=[C:14]([C:16]2([CH3:21])[O:20][CH2:19][CH2:18][O:17]2)[C:5]([O:6][CH:7]([CH3:13])[C:8]([O:10][CH2:11][CH3:12])=[O:9])=[C:4]([CH:22]=[O:25])[C:3]=1[F:24]

Komponenten

4

Edukt 2

HCID 24823OzoneHCID 86697550Ethyl 2-[4-chloro-3-fluoro-6-(2-methyl-1,3-dioxolan-2-yl)-2-vinylphenoxy]propanoate

Produkt 1

HCID 86697551Ethyl 2-[4-chloro-3-fluoro-2-formyl-6-(2-methyl-1,3-dioxolan-2-yl)phenoxy]propanoateAusbeute 98 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

A solution of ethyl 2-[4-chloro-3-fluoro-6-(2-methyl-1,3-dioxolan-2-yl)-2-vinylphenoxy]propanoate (400 mg, 1.11 mmol) in methylene chloride (40 mL) at −78° C. was treated with ozone until a purple color persisted. The reaction mixture was purged with oxygen, treated with dimethyl sulfide (1 mL) and warmed to room temperature. The reaction mixture was concentrated to give the crude product (392 mg, 98%) as a mixture of enantiomers that was used without further purification. LCMS calculated for C16H19ClFO6 (M+H)+: m/z=361.1; found: 361.1.

Aufarbeitung

  1. customThe reaction mixture was purged with oxygen
  2. additiontreated with dimethyl sulfide (1 mL)
  3. concentrationThe reaction mixture was concentrated

Quellen und Nachweise

ORD-Eintrag
ord-62ac302be5f645d0a66a677c3635c032
Quelldatensatz
uspto-grants-2016_04
Patentnummer
US09309251B2

Notizen zur Reaktion

Wird geladen…