X-ray structures of cyclophanes derived from naphtha[1,2-c:5,6-c] difuran and the synthesis, structure, and reaction kinetics of its 1,3,6,8-tetrasilylated derivative

A silylated derivative of naphtha[1,2-c:5,6-c]difuran, 1,3,6,8-tetrakis(tert-butyldimethylsilyl) naphtha[1,2-c:5,6-c]difuran, is isolated and its X-ray crystal structure is determined. Crystal structures of two cyclophanes derived from the reaction of naphtha[1,2-c:5:6-c]difuran and bis(imide) or bis(ester) dienophiles have shown differences in the conformation of the aliphatic chain seen in the solid state.