Tetrahydrofuran → HCID 86682691, Verbindung

HRID 449788

Reaktionsgleichung

[O:1]1[CH2:5][CH2:4][CH2:3][CH2:2]1.[CH:6]1([C:12]2[CH:18]=[CH:17][C:15]([OH:16])=[CH:14][C:13]=2[OH:19])[CH2:11][CH2:10][CH2:9][CH2:8][CH2:7]1.[H-].[Na+].[P:22](Cl)([O:32][CH2:33][C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1)([O:24][CH2:25][C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1)=[O:23]>O>[CH2:5]([O:1][P:22]([O:16][C:15]1[CH:17]=[CH:18][C:12]([CH:6]2[CH2:7][CH2:8][CH2:9][CH2:10][CH2:11]2)=[C:13]([O:19][P:22]([O:32][CH2:33][C:34]2[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=2)([O:24][CH2:25][C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)=[O:23])[CH:14]=1)([O:24][CH2:25][C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1)=[O:23])[C:4]1[CH:33]=[CH:34][CH:35]=[CH:2][CH:3]=1

Komponenten

Reaktionsbedingungen

Temperatur: 0 °C

Versuchsvorschrift

To a tetrahydrofuran solution (10 ml) of 4-cyclohexylresorcinol (926 mg), sodium hydride (60% dispersion in liquid paraffin) (404 mg) was added and stirred at 0° C. for 30 minutes. Then, dibenzyl chlorophosphate (10 w/v % solution in benzene) (30 ml) was added dropwise. After stirring at room temperature for 3 hours, water (30 ml) was added to the reaction mixture, and the extraction was carried out with ethyl acetate (30 ml). Then, the extract was washed with saturated brine (20 ml), dried with anhydrous sodium sulfate and then concentrated. The residue (4.12 g) was subjected to silica gel chromatography (silica gel 90 g, chloroform to chloroform:methanol=100:1), to give 1,3-bis(dibenzylphosphonooxy)-4-cyclohexylbenzene (2.19 g, yield: 64%) as a yellow liquid.

Aufarbeitung

stirringAfter stirring at room temperature for 3 hours
extractionthe extraction
washThen, the extract was washed with saturated brine (20 ml)
dry with materialdried with anhydrous sodium sulfate
concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag: ord-e3fe8978e03448e5b19ee71f2e107697
Quelldatensatz: uspto-grants-2013_07
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US08486919B2

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