费舍尔氏醛 、
1,3-diethyl-5-(1H-inden-2(3H)-ylidene)-2-thioxodihydropyrimidine-4,6(1H,5H)-dione 在
乙酸酐 作用下,
反应 1.0h,
以73.6%的产率得到5-((1E,3E)-1,3-bis((E)-2-(1,3,3-trimethylindolin-2-ylidene)ethylidene)-1H-inden-2(3H)-ylidene)-1,3-diethyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione