... Soc. (C) 1971, 404. 14. KE Harding, RC Ligon, Synthetic Commun. 197~, 4, 297. 15. R. Hollenstein, Wv Philipsborn, Heiv. Chu. Acta 1972, 55, 2030. 16. K. Hlen, S. Bender, E. Kotzaniani, H. Schmickler, B. Frei, HR Wolf, Tetrahedron Lett. 1981, 3513. (Received in Germany 29 August 1985). References. 1. K. Müllen, E. Kotzamani, H. Schmickler, B. Frei. Tetrahedron Lett. (1984), p. 5623. 2. ...