492-21-7
xanthene-9-thione
+
42520-11-6
2-bromo-1,1-diethoxyethene
→
~82%
17792-13-1
ethyl 2-xanthen-9-ylideneacetate
51452-87-0
2,2-二溴联苯醚
140-88-5
丙烯酸乙酯
~76%
623-73-4
重氮乙酸乙酯
~52%
218281-09-5
ethyl 2-(9H-xanthen-9-yl)acetate