Aa. Gakh et al., A FACILE SYNTHESIS AND X-RAY STRUCTURE DETERMINATION OF THE FIRST TRIPTYCENOCROWN ETHERS, Tetrahedron letters, 36(45), 1995, pp. 8163-8166
The synthesis of the first triptycenocrown ethers was achieved by two-
step procedure which includes condensation of 9,10-bis(chloromethyl)an
thracene with polyethylene glycols to yield the intermediate 9,10-anth
racenocrown ethers, and subsequent cycloaddition of benzyne leading to
the title compounds. The structures of 9,10-triptyceno-25-crown-7 (1)
and its thallium nitrate complex (Tl-1) were determined by X-Ray diff
raction analysis and NMR spectroscopy.