| Identification | Back Directory | [Name]
6,6-DIBENZYL-14-CROWN-4 | [CAS]
106868-21-7 | [Synonyms]
DIBENZYL-14-CROWN-4
LITHIUM IONOPHORE VI
6,6-DIBENZYL-14-CROWN-4
FLUKABRAND SELECTOPHORE, LITHIUM*IONOPHO RE VI
6,6-DIBENZYL-1,4,8,11-TETRAOXACYCLOTETRADECANE
1,4,8,11-Tetraoxacyclotetradecane, 6,6-bis(phenylmethyl)-
6,6-DIBENZYL-1,4,8,11-TETRAOXACYCLOTETRADECANE (DIBENZYL-14-CROWN-4)
6,6-Dibenzyl-1,4,8-11-tetraoxacyclotetradecane, 6,6-Dibenzyl-14-crown-4 | [Molecular Formula]
C24H32O4 | [MDL Number]
MFCD00037498 | [MOL File]
106868-21-7.mol | [Molecular Weight]
384.51 |
| Chemical Properties | Back Directory | [Melting point ]
97～103℃ | [Boiling point ]
524.3±35.0 °C(Predicted) | [density ]
1.046±0.06 g/cm3(Predicted) | [form ]
solid | [BRN ]
5991129 | [InChI]
1S/C24H32O4/c1-3-8-22(9-4-1)18-24(19-23-10-5-2-6-11-23)20-27-16-14-25-12-7-13-26-15-17-28-21-24/h1-6,8-11H,7,12-21H2 | [InChIKey]
KDMUFHBMXZLDLI-UHFFFAOYSA-N | [SMILES]
C1COCCOCC(COCCOC1)(Cc2ccccc2)Cc3ccccc3 |
| Hazard Information | Back Directory | [Uses]
Dibenzyl-14-crown-4 (6,6-Dibenzyl-1,4,8,11-tetraoxacyclotetradecane) is a crown ether derivate, which serves as neutral carrier in PVC ion-selective electrode, improves the Li+ selectivity against Na+ and K+[1]. | [Purification Methods]
Dissolve it in CHCl3, wash this with saturated aqueous NaCl, dry (MgSO4), evaporate and purify it by chromatography on silica gel and gradient elution with *C6H6/MeOH followed by preparative reverse phase HPLC on an octadecyl silanised silica (ODS) column and eluting with MeOH. It can be recrystallised from MeOH ( max 1120 cm-1, C-O-C in KBr). [Kimura et al. Anal Chem 59 2331 1987, see also Maruyama et al. J Chem Soc Perkin Trans 1 2069 1986 and Tsukube et al. J Chem Soc Perkin Trans 1 1033 1986.] It complexes selectively with Li ions. | [References]
[1] Kimura K, et al., Lithium ion selective electrodes based on crown ethers for serum lithium assay. Anal Chem. 1987 Oct 1;59(19):2331-4. DOI:10.1021/ac00146a004 |
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