Dicyclohexylcarbodiimide → p-Terphenyl

HRID 439302

Reaction equation

C(O[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][CH:22]=[CH:21][CH:20]=3)=[CH:15][CH:14]=2)=[CH:9][CH:8]=1)CCCC.C1(N=C=NC2CCCCC2)CCCCC1.FC1C(O)=C(F)C(F)=C(F)C=1F>C(OCC)(=O)C>[C:10]1([C:13]2[CH:18]=[CH:17][C:16]([C:19]3[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=3)=[CH:15][CH:14]=2)[CH:9]=[CH:8][CH:7]=[CH:12][CH:11]=1

Participants

Conditions

Temperature: 25 °C

Procedure

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-pentytoxy)- 1,1':4',1"-terphenyl!-4-carboxylate, C30H23F5O3, M.W.=526.5.

Workup

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

Sources & evidence

ORD record: ord-9cae4aa6c04e451fb7509c3665daaff7
Source dataset: uspto-grants-1996_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05514651

Linked notes

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