Ring transformations of heterocyclic compounds.<b>XIII</b>. Bis(2,4,6-triarylphenyl) substituted bispyridinium salts from methyl derivatives by double pyrylium and thiopyrylium ring transformations
作者:Thomas Zimmermann、Klaus Schmidt
DOI:10.1002/jhet.5570330342
日期:1996.5
unknown 4,4′-bis(2,4,6-triarylphenyl) substituted bispyridinium diperchlorates 3, in which the N-atoms are linked by a carbon chain, a heteroatom containing a carbon chain or a bis(methylene) substituted aromatic/heteroaromatic ring, from 4,4′-dimethylbispyridinium derivatives 2 by a double 2,6-[C5+C] ring transformation of 2,4,6-triarylpyrylium and 2,4,6-triarylthiopyrylium salts 1/4 is reported.
迄今未知的4,4'-双(2,4,6-三芳基苯基)取代的双吡啶二氯化二氯酸盐3的合成,其中N-原子通过碳链,含有碳链的杂原子或双(亚甲基)连接取代的芳族/杂芳族环,由4,4'-二甲基双吡啶鎓衍生物2通过2,4,6-三芳基吡啶鎓盐和2,4,6-三芳基硫代吡啶鎓盐1/4的双2,6- [C 5 + C]环双转化被报道。讨论了双吡啶二氯双吡啶鎓盐3的光谱数据及其形成方式。