The condensation reaction between p‐tert‐butylphenol and formaldehyde leads in a single
step to good yields of cyclic oligomers in which, depending on the reaction conditions, either …

Calixarenes are macrocyclic molecules, like crown ethers and cyclodextrins. 1-7
Calixarenes made up of phenol and methylene units have many conformational isomers …

TETRAHEDRONREPORTNUMBER340 Page 1 Tdmhedron Vol. 49, No. 40. pp. 8933-8968.1993
Printed in Great Britain 00404020/93 $6.00+.00 h8Un0” RCSS Ind …

Thiacalixarenes—new members of the calixarene family—are very promising molecules
with many potential applications in supramolecular chemistry. The presence of four sulfur …

Durch Kondensation von p‐tert‐Butylphenol mit Formaldehyd sind in einem Schritt in guten
Ausbeuten cyclische Oligomere erhältlich, in denen je nach Reaktionsbedingungen vier …

The frequency-doubling of 820 nm laser light is one of the properties of a series of nitrocalix-
[4] arenes making them suitable, in principle, for the construction of a blue laser. Derivative 1 …

Abstract New 25, 27‐dialkoxycalix‐[4] arenecrown‐5 conformers 8, 10, and 11 have been
synthesized and studied. The compounds 8a and 8b, fixed in 1, 3‐alternate structure, have …

As part of a program involving the chemistry of the calix [5] arenes, a variety of ethers and
esters of p-tertbutylcalix [5] arene (lb) have been synthesized and their conformational …

Calixarenes, which are phenol-formaldehyde cyclic oligomers, are receiving increasing
attention in the field of supramolecular chemistry. 1, 2 Calix [4] arenes (Chart I) can easily be …

A new one-step procedure for the synthesis of monoalkylated calix [4] arenes is presented.
Reaction of calix [4] arene 1a or 1b with 1.2 equivalent of a weak base (K2CO3 in MeCN or …