ChemicalBook >?? ???? >4-tert-?????[4]??
4-tert-?????[4]??
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![4-tert-?????[4]??](CAS/GIF/60705-62-6.gif)
4-tert-?????[4]?? ??
- ???
- ≥300 °C(lit.)
- ?? ?
- 636.8°C (rough estimate)
- ??
- 0.9543 (rough estimate)
- ???
- 1.6400 (estimate)
- ?? ??
- Store below +30°C.
- ??? ??
- ??? ?? ?? ????
- ?? ?? (pKa)
- 9.53±0.20(Predicted)
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- ??~?? ???
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- BRN
- 2033965
- InChIKey
- NVKLTRSBZLYZHK-UHFFFAOYSA-N
- CAS ??????
- 60705-62-6(CAS DataBase Reference)
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- ?? ? ???? ?? (GHS)
4-tert-?????[4]?? C??? ??, ??, ??
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White to light beige crystalline powder or flakes??
It is used as a starting material for further derivatization, including halogenation, acylation, and diazo coupling.Purification Methods
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.]4-tert-?????[4]?? ?? ?? ? ???
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4-tert-?????[4]?? ?? ??
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4-tert-?????[4]?? ?? ??:
4-t-????? 4-t-???? ?????????? 3??? ???? ????? ?? T-????? tert-????? tert-???? ??-???????????
Methyl 4-tert-butylbenzoate
Calix[4]arene
O(1),O(3)-BIS(CARBOXYMETHYL)-O(2),O(4)-DIMETHYL-P-T-BUTYLCALIX(4)ARENE
O(1),O(3)-BIS(CARBETHOXYMETHYL)-P-TERT-BUTYLCALIX(4)ARENE,O(1),O(3)-Bis(ethoxycarbonylmethyl)-p-tert-butylcalix[4]arene
4-TERT-BUTYLCALIX[6]ARENE
1,3-DIMETHOXY-4-TERT-BUTYLCALIX[4]ARENE 99%,1,3-DIMETHOXY-4-TERT-BUTYLCALIX(4)ARENE
4-TERT-BUTYLCALIX[4]ARENE-TETRAACETIC ACID TETRAETHYL ESTER
O(1),O(3)-BIS(ETHOXYCARBONYLMETHYL)-O(2),O(4)-DIMETHYL-P-TERT-BUTYLCALIX[4]ARENE
p-tert-Butylcalix(8)arene ,4-TERT-BUTYLCALIX(8)ARENE 95%,4-TERT-BUTYLCALIX[8]ARENE
4-TERT-BUTYLCALIX[4!ARENE TETRAACETIC ACID