76630-86-9Relevant articles and documents
Preparation and characterization of 1,8,19,26-tetraoxa[8.8](2,6)naphthalenophane-3,5,21,23-tetrayne and related donut-shaped cyclophanes
Whitlock, Barbara J.,Jarvi, Esa T.,Whitlock, Howard W.
, p. 1832 - 1835 (1981)
The synthesis of two representative members of the little explored class of large donut-shaped molecules is described. Investigation of their NMR spectra shows them to possess large cavities.