64-17-5
乙醇
+
74142-33-9
1-(1-Propinyl)vinyl-triflat
→
~3%
4911-55-1
penta-1,3-diyne
+
7299-55-0
pent-3-yn-2-one
+
74142-35-1
ethyl-(1-methylene-but-2-ynyl)-ether
+
2200-53-5
1,2-戊二烯-4-酮
1474-32-4
3-(triphenyl-λ5-phosphanylidene)pentane-2,4-dione
→
7299-55-0
pent-3-yn-2-one
+
2200-53-5
1,2-戊二烯-4-酮
1020167-59-2
(+)-(S)-tert-butyl 2-(1-(ethoxycarbonyl)prop-2-en-2-yl)-2,3-dihydro-5,6-dimethoxy-1-oxo-1H-indene-2-carboxylate
→
2200-53-5
1,2-戊二烯-4-酮