Interaction of 4-methyl-Δ3-thiachromene with polyphosphoric acid (PPA) yields 4-methylthiachroman and a blue thiacyanine dye. The latter is formed from 4-methylthianaphthalenium salt as a precursor.
的4-甲基- Δ相互作用3 -thiachromene与多
磷酸(
PPA),得到4- methylthiachroman和蓝色噻菁
染料。后者由4-甲基
噻吩鎓盐作为前体形成。