2,3-dimethylthioanthraquinono<2,1-d>thiazolium chloride 、 alkaline earth salt of/the/ methylsulfuric acid 在
乙酸酐 作用下,
反应 0.75h,
以35%的产率得到3-methyl-2-<7-(3-methylanthraquinono<2,1-d>thiazol-2(3H)-ylidene)-1,3,5-heptatrienyl>anthraquinono<2,1-d>-thiazolium chloride