Synthesis of New Macrocyclic Schiff Bases Containing Pyrazole and Triazole as Subcyclic Units

摘要

The novel macrocyclic Schiff bases upon which were fused triazole and pyrazole units and containing N, O and S inside the macrocyclic ring as donor atoms were synthesized by condensation of appropriate bis(4-amino-1,2,4-triazole-3-yl-sulfanyl)alkanes 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i, 2j, 2k, 2l, 2m, 2n, 2o, 2p, 2q, 2r and pyrazoledialdehyde 3 in refluxing glacial acetic acid. The structural identities of these compounds were confirmed on the basis of spectrum.