Fenbufen → Phthalidyl 4-(4-biphenylyl)-4-oxobutyrate

HRID 371114

Reaktionsgleichung

Reaktionsgleichung von HRID 371114
[C:1]1([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[CH:6]=[CH:5][C:4]([C:7](=[O:13])[CH2:8][CH2:9][C:10]([OH:12])=[O:11])=[CH:3][CH:2]=1.C(N(CC)CC)C.Br[CH:28]1[C:37]2[C:32](=[CH:33][CH:34]=[CH:35][CH:36]=2)[C:30](=[O:31])[O:29]1>C(Cl)(Cl)Cl>[C:1]1([C:14]2[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=2)[CH:2]=[CH:3][C:4]([C:7](=[O:13])[CH2:8][CH2:9][C:10]([O:12][CH:28]2[C:37]3[C:32](=[CH:33][CH:34]=[CH:35][CH:36]=3)[C:30](=[O:31])[O:29]2)=[O:11])=[CH:5][CH:6]=1

Komponenten

5

Edukt 3

HCID 3335FenbufenHCID 8471TriethylamineHCID 962181(3H)-Isobenzofuranone, 3-bromo-

Produkt 1

HCID 12769707Phthalidyl 4-(4-biphenylyl)-4-oxobutyrateAusbeute 73 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6212ChloroformLösungsmittel2×

Versuchsvorschrift

To a solution of 7.5 g of 4-(4-biphenylyl)-4-oxobutyric acid in 40 ml of chloroform and 3.4 g of triethylamine is added a solution of 6.2 g of 3-bromophthalide in 20 ml of chloroform. The solution thus obtained is stirred 24 hours at room temperature, the organic phase is washed with an aqueous solution of sodium bicarbonate, then with water and finally it is dried on anhydrous sodium sulfate and evaporated to dryness to give the phthalidyl 4-(4-biphenylyl)-4-oxobutyrate; yield 73%.

Aufarbeitung

  1. customThe solution thus obtained
  2. washthe organic phase is washed with an aqueous solution of sodium bicarbonate
  3. dry with materialwith water and finally it is dried on anhydrous sodium sulfate
  4. customevaporated to dryness

Quellen und Nachweise

ORD-Eintrag
ord-acd74628f258460587cc31e2e8b25646
Quelldatensatz
uspto-grants-1985_07
Patentnummer
US04529737

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