三苯基氧化膦

4-(thiophen-2-ylmethylene)-2-(p-tolyl)oxazol-5(4H)-one

4-furfurylidene-2-p-tolyl-4H-oxazol-5-one

4-(thiophen-3-ylmethylene)-2-(p-tolyl)oxazol-5(4H)-one

2-chloroethyl 4-methylbenzoate