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 |
杯[4]芳烃 | 25,26,27,28-tetrakis(hydroxy)calix[4]arene | 74568-07-3 | C28H24O4 | 424.496 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 5,17-dibromo-25,26,27,28-tetra-n-propylcalix[4]arene | 863555-70-8 | C40H46Br2O4 | 750.611 |
—— | 3,15-Dibromo-34,35-dipropoxy-19,22,25-trioxahexacyclo[15.9.7.17,11.128,32.05,26.013,18]pentatriaconta-1,3,5(26),7(35),8,10,13(18),14,16,28(34),29,31-dodecaene | 219712-26-2 | C38H40Br2O5 | 736.541 |
—— | 3,15-Dibromo-37,38-dipropoxy-19,22,25,28-tetraoxahexacyclo[15.12.7.17,11.131,35.05,29.013,18]octatriaconta-1,3,5(29),7(38),8,10,13(18),14,16,31(37),32,34-dodecaene | 910885-83-5 | C40H44Br2O6 | 780.594 |
—— | 5,17-dibromo-25,27-dipropoxy-26,28-(3,6,9,12-tetraoxatetradecane-1,14-diyldioxy)calix[4]arene, 1,3-alternate | 321201-64-3 | C44H52Br2O8 | 868.7 |
—— | 11,23-dibromo-25,27-bis(2-methoxy-ethoxymethoxy)-26,28-bis(propyloxy)calix[4]arene | 1184292-23-6 | C42H50Br2O8 | 842.662 |
—— | 11,23-dibromo-25,27-dibenzyloxy-26,28-bis(propyloxy)calix[4]arene | 945554-43-8 | C48H46Br2O4 | 846.699 |
—— | 5,17-diformyl-25,26,27,28-tetra-(1-propoxy)calix[4]arene | 175019-04-2 | C42H48O6 | 648.84 |
—— | 5-cyano-26,28-dihydroxy-25,27-dipropoxycalix[4]arene | 219712-18-2 | C35H35NO4 | 533.667 |
—— | 5,11-dicyano-25,27-dihydroxy-26,28-dipropoxycalix<4>arene | 219712-12-6 | C36H34N2O4 | 558.677 |
—— | 34,35-Dipropoxy-19,22,25-trioxahexacyclo[15.9.7.17,11.128,32.05,26.013,18]pentatriaconta-1,3,5(26),7(35),8,10,13(18),14,16,28(34),29,31-dodecaene-3,15-dicarbonitrile | 219712-27-3 | C40H40N2O5 | 628.768 |
—— | 25,26,27,28-tetrakis(1-propoxy)calix[4]arene-5,17-dicarboxylic acid | 181787-17-7 | C42H48O8 | 680.838 |
—— | 25,26,27,28-tetraproxycalix[4]arene-5,17-dicarboxoyl chloride | 191880-48-5 | C42H46Cl2O6 | 717.73 |
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.