pyrylium
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英 
例句
Treatments of pyrylium salts with various nucleophilic reagents allows the production of a host of functionalized derivatives .
如果各种亲核试剂与吡喃盐反应,就可制取许多种带官能基的衍生物。
Such a helerocycle is found in pyrylium salts.
吡喃盐就是这类的杂环。
Synthesis and Solubility Properties of Pyrylium-Squarylium Cyanine Dyes Containing tert-Butyl Groups
含叔丁基吡喃方酸菁染料的合成及溶解性能研究