5061-21-2
α-溴-γ-丁内酯
+
603-35-0
三苯基膦
→
~90%
34932-07-5
二氢-3-(三苯基膦亚基)-2(3H)-呋喃酮
28228-78-6
(2-oxooxolan-3-yl)-triphenylphosphanium,bromide