Novel furan-, thiophene-and benzo [b] thiophene bridged macrocycles of 4, 4′-bipyridine
H Scheytza, HU Reissig, O Rademacher
Index: Scheytza, Holger; Reissig, Hans-Ulrich; Rademacher, Otto Tetrahedron, 1999 , vol. 55, # 15 p. 4709 - 4720
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Citation Number: 11
Abstract
Eight novel heterocyclic bridged phanes of the paraquat type were synthesized by a simple two-step procedure. Starting from furan bridged bis (4, 4′-bipyridinium) dication 2 and the corresponding bis (bromomethyl) arenes furanophanes of 4, 4′-bipyridine were obtained in moderate to high yields. In similar manner thiphenophane 9 was synthesized in low yield using dication 8 as precursor. The spectroscopic properties of furanophane 4 and ...
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