Triethylamine → 3-Tetrahydrofuryl 2-nitro-5-(2-cyano-4-trifluoromethylphenoxy)benzoate

HRID 2290686Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2290686
[OH:1][CH:2]1[CH2:6][CH2:5][O:4][CH2:3]1.C(N(CC)CC)C.[N+:14]([C:17]1[CH:25]=[CH:24][C:23]([O:26][C:27]2[CH:32]=[CH:31][C:30]([C:33]([F:36])([F:35])[F:34])=[CH:29][C:28]=2[C:37]#[N:38])=[CH:22][C:18]=1[C:19](Cl)=[O:20])([O-:16])=[O:15]>C1(C)C=CC=CC=1>[N+:14]([C:17]1[CH:25]=[CH:24][C:23]([O:26][C:27]2[CH:32]=[CH:31][C:30]([C:33]([F:34])([F:35])[F:36])=[CH:29][C:28]=2[C:37]#[N:38])=[CH:22][C:18]=1[C:19]([O:1][CH:2]1[CH2:6][CH2:5][O:4][CH2:3]1)=[O:20])([O-:16])=[O:15]

Komponenten

5

Edukt 3

HCID 8471TriethylamineHCID 99603-Furanol, tetrahydro-HCID 202299225-[2-Cyano-4-(trifluoromethyl)phenoxy]-2-nitrobenzoyl chloride

Produkt 1

HCID 137313093-Tetrahydrofuryl 2-nitro-5-(2-cyano-4-trifluoromethylphenoxy)benzoate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1140TolueneLösungsmittel2×

Versuchsvorschrift

3-Hydroxytetrahydrofuran (0.04 mole), toluene (50 ml) and triethylamine (0.04 mole) are charged into a glass reaction vessel equipped with a mechanical stirrer and addition funnel. A solution of 2-nitro-5-(2-cyano-4-trifluoromethylphenoxy)benzoyl chloride (0.04 mole) in toluene (20 ml) is slowly added at room temperature with stirring. After the addition is completed, stirring is continued for a period of about eight hours. After this time, the reaction mixture is washed with water and dried over anhydrous magnesium sulfate. The dried solution is then stripped of solvent under reduced pressure leaving a residue. This residue is purified by silica gel chromatography using toluene and ethyl acetate/toluene mixture as the eluant to yield the desired product 3-tetrahydrofuryl 2-nitro-5-(2-cyano-4-trifluoromethylphenoxy)benzoate.

Aufarbeitung

  1. customequipped with a mechanical stirrer and addition funnel
  2. additionAfter the addition
  3. stirringstirring
  4. washAfter this time, the reaction mixture is washed with water
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customleaving a residue
  7. customThis residue is purified by silica gel chromatography

Quellen und Nachweise

ORD-Eintrag
ord-9d31047fc5b3409ea041bcc194bae545
Quelldatensatz
uspto-grants-1986_10
Patentnummer
US04618359

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