2,3-dimethylthioanthraquinono<2,1-d>thiazolium methylsulfate 、
3-methyl-2-methylthioanthraquinono<2,1-d>thiazolium methylsulfate 以
吡啶 为溶剂,
反应 0.75h,
以76%的产率得到3-methyl-2-<<3-methylanthraquinono<2,1-d>thiazol-2(3H)-ylidene>methyl>anthraquinono<2,1-d>-thiazolium methylsulfate