2,2'-Dithiodibenzoyl chloride → 3,3'-[Dithiobis(2,1-phenylenecarbonylimino)]bis-2-thiophenecarboxylic acid, dimethyl ester

HRID 3722

Reaktionsgleichung

[C:1](Cl)(=[O:19])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[S:8][S:9][C:10]1[CH:18]=[CH:17][CH:16]=[CH:15][C:11]=1[C:12](Cl)=[O:13].[NH2:21][C:22]1[CH:26]=[CH:25][S:24][C:23]=1[C:27]([O:29][CH3:30])=[O:28]>ClCCl.N1C=CC=CC=1>[C:11]1([C:12]([NH:21][C:22]2[CH:26]=[CH:25][S:24][C:23]=2[C:27]([O:29][CH3:30])=[O:28])=[O:13])[CH:15]=[CH:16][CH:17]=[CH:18][C:10]=1[S:9][S:8][C:3]1[CH:4]=[CH:5][CH:6]=[CH:7][C:2]=1[C:1]([NH:21][C:22]1[CH:26]=[CH:25][S:24][C:23]=1[C:27]([O:29][CH3:30])=[O:28])=[O:19]

Komponenten

Reaktionsbedingungen

Temperatur: 23 °C

Versuchsvorschrift

A solution of 2,2'-dithiobisbenzoyl chloride (2.00 g, 5.83 mmol) in 50 mL of dichloromethane was added to a solution of methyl 3-amino-2-thiophenecarboxylate (1.82 g, 11.6 mmol) in 14 mL of pyridine at 23° C. The reaction mixture was stirred for 18 hours at 23° C. under nitrogen atmosphere. The precipitate formed was collected by filtration, then triturated with 5% aqueous HCl and washed with water to yield the crude product. The crude material was recrystallized first from ethanol, then from acetonitrile-DMF to yield 2.0 g of the title compound, mp 250°-252° C.

Aufarbeitung

customThe precipitate formed
filtrationwas collected by filtration
customtriturated with 5% aqueous HCl
washwashed with water
customto yield the crude product
customThe crude material was recrystallized first from ethanol

Quellen und Nachweise

ORD-Eintrag: ord-b718485e058f488da242388c9e90b503
Quelldatensatz: uspto-grants-1998_03
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US05734081

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