中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 25,27-dihydroxy-26,28-dipropoxycalix[4]arene | 143406-35-3 | C34H36O4 | 508.657 |
—— | 25,27-bis(benzyloxy)-26,28-dihydroxycalix[4]arene | 125065-63-6 | C42H36O4 | 604.745 |
杯[4]芳烃 | 25,26,27,28-tetrakis(hydroxy)calix[4]arene | 74568-07-3 | C28H24O4 | 424.496 |
—— | 25,26,27-tris(benzoyloxy)-28-hydroxycalix[4]arene | 106774-58-7 | C49H36O7 | 736.821 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 25,27-dihydroxy-26,28-dipropoxycalix[4]arene | 143406-35-3 | C34H36O4 | 508.657 |
—— | 25,26-dihydroxy-27,28-dipropoxycalix[4]arene | 392743-43-0 | C34H36O4 | 508.657 |
—— | 25,26,27,28-tetrapropyloxycalix[4]arene | —— | C40H48O4 | 592.819 |
—— | 25,26,27-tris(hydroxycarbonylmethoxy)-28-propoxycalix[4]arene | 401894-87-9 | C37H36O10 | 640.687 |
—— | 5,17-dihydroxymethyl-25,26,27,28-tetra-(1-propoxy)calix[4]arene | 163121-51-5 | C42H52O6 | 652.871 |
—— | 5,17-diformyl-25,26,27,28-tetra-(1-propoxy)calix[4]arene | 175019-04-2 | C42H48O6 | 648.84 |
—— | 5,17-dibromomethyl-25,26,27,28-tetra(1-propoxy)-calix[4]arene | 262590-47-6 | C42H50Br2O4 | 778.665 |
—— | 5,17-dibromo-25,26,27,28-tetra-n-propylcalix[4]arene | 863555-70-8 | C40H46Br2O4 | 750.611 |
—— | 5,11,17,23-tetrabromo-25,26,27,28-tetrapropoxycalix[4]arene | 771499-24-2 | C40H44Br4O4 | 908.403 |
—— | 25,26,27-tris(tert-butyloxycarbonylmethoxy)-28-propoxycalix[4]arene | 401894-86-8 | C49H60O10 | 809.009 |
—— | 25-propoxy-26,27-dibenzoyloxycalix[4]arene | 1311286-78-8 | C45H38O6 | 674.793 |
—— | 25,27-dipropoxy-26-benzoyloxy-28-hydroxycalix[4]arene | 910223-30-2 | C41H40O5 | 612.766 |
—— | 25-benzoyloxy-27-propoxy-26,28-dihydroxycalix[4]arene | 1311286-74-4 | C38H34O5 | 570.685 |
—— | 2-[(26,28-dihydroxy-27-propoxy-25-pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(25),3,5,7(28),9(27),10,12,15(26),16,18,21,23-dodecaenyl)oxy]-N-[(1R)-1-phenylethyl]acetamide | 1187816-98-3 | C41H41NO5 | 627.78 |
The regioselective upper-rim functionalization of calix[4]arene have been performed to prepare all the multisubstituted diphenylphosphine derivatives. In addition, the X-ray structures of 5,17-dibromo-11,23-bis(diphenylphosphino)-25,26,27,28-tetra-n-propoxycalix[4]arene and 5,11,17,23-tetrakis(diphenylphosphino)-25,26,27,28-tetra-i-propoxy-calix[4]arene have been determined. Regioselective functionalizations have been achieved using methods that involve appropriate choices of bases, alkyllithium-solvent systems, stoichiometry, and reaction times. A new and convenient method for selectively preparing derivitized calix[4]arenes at proximal positions in relative large scale quantity has been developed and involves a transesterification of the distal diester derivative into the proximal isomer.Key words: calix[4]arenes, phosphine, upper-rim, X-ray structure, transesterification.