Hydrochloric Acid → 4-(Biphenyl-2-yloxy)-3-cyanobenzenesulfonyl chloride

HRID 46286

Reaktionsgleichung

Reaktionsgleichung von HRID 46286
C(N[S:9]([C:12]1[CH:13]=[CH:14][C:15]([O:20][C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=2[C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=2)=[C:16]([CH:19]=1)[C:17]#[N:18])(=[O:11])=[O:10])C1C=CC=CC=1.[ClH:33].Cl[O-].[Na+]>ClCCl>[C:22]1([C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=2)[CH:23]=[CH:24][CH:25]=[CH:26][C:21]=1[O:20][C:15]1[CH:14]=[CH:13][C:12]([S:9]([Cl:33])(=[O:11])=[O:10])=[CH:19][C:16]=1[C:17]#[N:18]

Komponenten

5

Edukt 3

HCID 313Hydrochloric AcidHCID 23665760Sodium HypochloriteHCID 669054565-Benzylsulfamyl-2-(biphenyl-2-yloxy)-benzonitrile

Produkt 1

HCID 594365064-(Biphenyl-2-yloxy)-3-cyanobenzenesulfonyl chloride

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

A mixture of 5-benzylsulfamyl-2-(biphenyl-2-yloxy)-benzonitrile (Preparation 56, 6.06 g, 15.4 mmol), dichloromethane and aq HCl was stirred vigorously with cooling (ice bath). Sodium hypochlorite was added dropwise over 30 minutes and stirring continued with cooling for 1 hour. The layers were separated, the aqueous extracted with dichloromethane (2×100 ml), and the organic collected, dried (MgSO4) and concentrated in vacuo. The residue was purified using silica gel column chromatography (ethyl acetate:Heptane 10/90 to 20/80) to furnish 4.58 g of the title compound. 1HNMR (CDCl3): δ 6.7 (m, 1H), 7.2-7.6 (m, 9H), 7.85 (m, 1H), 8.15 (m, 1H).

Aufarbeitung

  1. temperaturewith cooling (ice bath)
  2. stirringstirring
  3. temperaturewith cooling for 1 hour
  4. customThe layers were separated
  5. extractionthe aqueous extracted with dichloromethane (2×100 ml)
  6. dry with materialthe organic collected, dried (MgSO4)
  7. concentrationconcentrated in vacuo
  8. customThe residue was purified

Quellen und Nachweise

ORD-Eintrag
ord-3ec879e18afb4ac9b07b7d7538aaf8b3
Quelldatensatz
uspto-grants-2013_09
Patentnummer
US08541588B2

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