31188-53-1
3-methylbut-2-enylidene(triphenyl)-λ5-phosphane
+
98-88-4
苯甲酰氯
→
~70%
88299-55-2
4-methyl-1-phenyl-2-(triphenyl-λ5-phosphanylidene)pent-3-en-1-one
36597-09-8
4-methyl-1-phenylpent-3-en-1-one