Research Article
Synthesis and Molecular Structure of 4′,9′,4″,9″-Tetra-tert-butyl-1′,6′,1″,6″-tetramethoxy-2,5-dioxa[3.3]metabiphenylophane
Scheme 1
4′,9′,4′′,9′′-tetra-tert-butyl-1′,6′,1′′,6′′-tetramethoxy-2,5-dioxa[3.3]metabiphenylophane 3 (right) and its precursors 1, 2 (left).