| | 60705-62-6 Basic information More.. |
| Product Name: | 4-tert-Butylcalix[4]arene | | Synonyms: | TETRA-TERT-BUTYL(TETRAHYDROXY)CALIX[4]ARENE;AKOS 43;4-TERT-BUTYLCALIX[4]ARENE;4-T-BUTYLCALIX[4]ARENE;ETHYL 2-([5,11,17,23-TETRA(TERT-BUTYL)-26,27,28-TRIS(2-ETHOXY-2-OXYETHOXY)PENTACYCLO[19.3.1.1(3,7).1(9,13).1(15,19)]OCTACOSA-1(25),3(28),4,6,9(27),10,12,15,17,19,(26),21,23-DODECAEN-25-YL]OXY)ACETATE;LABOTEST-BB LT00453198;4-t-Butylcalix4arene,95%;4-TERT-BUTYLCALIX(4)ARENE 95% | | CAS: | 60705-62-6 | | MF: | C44H56O4 | | MW: | 648.91 | | EINECS: | 612-010-8 | | Mol File: | 60705-62-6.mol |  |
Use
The calixarene recrystallises from CHCl3 in large solvated prisms (m 380o dec); it effloresces on drying in air. Its tetra-acetate crystallises from Ac2O in colourless prisms m 332-333o(dec). It crystallises from CCl4 or chlorobenzene /EtOH (m >300o) and the tetra-acetate crystallises from CHCl3/EtOH m >290o(dec). It also crystallises from toluene in white plates with toluene of crystallisation m 344-346o (330-332o); the tetra-acetate crystallises with 1AcOH of crystallisation m 383-386o (softening at 330-340o, also m 283-286o), but acetylation with Ac2O/NaOAc gives the triacetate which recrystallises from AcOH with 1AcOH of crystallisation m 278-281o. 4-tert-Butylcalix[4]arene (100mg) is unchanged after boiling for 4hours with 10N KOH (0.04mL) in xylene (4mL). [Br J Pharmacol 10 73 1955, K.mmerer et al. Monatsh Chem 109 767 1978, Gutsche et al. J Am Chem Soc 103 3782 1981; see also Kluawer in Calixarenes, Vicens & B.hner eds Academic Press 1991, Beilstein 6 IV 7858.]
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60705-62-6
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