Dicyclohexylcarbodiimide → Pentafluorophenyl 4"-(n-pentyloxy)-[1,1':4',1"-terphenyl]-4-carboxylate

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Reaktionsgleichung

[CH2:1]([O:6][C:7]1[CH:12]=[CH:11][C:10]([C:13]2[CH:18]=[CH:17][C:16]([C:19]3[CH:24]=[CH:23][C:22]([C:25]([OH:27])=[O:26])=[CH:21][CH:20]=3)=[CH:15][CH:14]=2)=[CH:9][CH:8]=1)[CH2:2][CH2:3][CH2:4][CH3:5].C1(N=C=NC2CCCCC2)CCCCC1.[F:43][C:44]1[C:49](O)=[C:48]([F:51])[C:47]([F:52])=[C:46]([F:53])[C:45]=1[F:54]>C(OCC)(=O)C>[CH2:1]([O:6][C:7]1[CH:12]=[CH:11][C:10]([C:13]2[CH:18]=[CH:17][C:16]([C:19]3[CH:20]=[CH:21][C:22]([C:25]([O:27][C:49]4[C:48]([F:51])=[C:47]([F:52])[C:46]([F:53])=[C:45]([F:54])[C:44]=4[F:43])=[O:26])=[CH:23][CH:24]=3)=[CH:15][CH:14]=2)=[CH:9][CH:8]=1)[CH2:2][CH2:3][CH2:4][CH3:5]

Komponenten

Reaktionsbedingungen

Temperatur: 25 °C

Versuchsvorschrift

To a mixture of 4"-(n-pentyloxy)-[1,1':4',1"-terphenyl]-4-carboxylic acid (10.5 mmol) and dicyclohexylcarbodiimide (10.5 mmol) in ethyl acetate at 0° C. is added pentafluorophenol (11.5 mmol). The mixture is stirred at 25° C. for a period of 18 h, producing a precipitate. The mixture is filtered. The filtrate is washed with water and brine and dried with magnesium sulfate. The solvent is removed in vacuo to obtain pentafluorophenyl 4"-(n-pentyloxy)-[1,1':4',1"-terphenyl]-4-carboxylate, C30H23F5O3, M.W.=526.5.

Aufarbeitung

customproducing a precipitate
filtrationThe mixture is filtered
washThe filtrate is washed with water and brine
dry with materialdried with magnesium sulfate
customThe solvent is removed in vacuo

Quellen und Nachweise

ORD-Eintrag: ord-2ba91a890f6648d3b6d5e06bd926736c
Quelldatensatz: uspto-grants-1998_12
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US05854213

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