Abstract The few oxygenated homologues of calixarenes which appear from time to time in the literature are members of a large family of cyclophanes. In the case of calix [4] arene and oxygenated homologues with mixed CH 2 and CH 2 OCH 2 units (X in the figure), a complete series of these cyclophanes is now synthetically available; conformational behavior and binding properties are discussed in the light of the continuous change in the ...
