Synthesis of calixarene-like'' N,N-ditosyldiaza[3.3](1,4)-naphthalenophanes

A series of new tetrahomodiazacalix[2]naphthalenes, containing 2,3-dialkoxy-substituted naphthalene units, have been synthesized and some of their properties are reported. All of the newly-synthesized macrocycles were highly symmetrical and conformationally rigid and revealed calixarene-like'' 1,3- alternate type structures.