15677-02-8
2-(triphenyl-λ5-phosphanylidene)acetic acid
+
58645-78-6
benzo[g][1]benzofuran-3-one
→
~87%
821787-32-0
ethyl 2-benzo[g][1]benzofuran-3-ylacetate
821787-33-1
2-benzo[g][1]benzofuran-3-ylethanol