Ys. Zheng et Zt. Huang, SYNTHESIS OF OLIGOMERS OF CALIX[4]ARENE WITH METHYLENE BRIDGE AT THE UPPER RIMS, Tetrahedron letters, 39(32), 1998, pp. 5811-5814
Oligomeric mixture of calix[4]arene with methylene bridge at the upper
rims was synthesized by the reaction of butyl-25,27-dihydroxy-26,28-d
imethoxycalix[4]arene with chloromethyl methyl ether, and the major pr
oduct is cyclic trimer. (C) 1998 Elsevier Science Ltd. All rights rese
rved.