2018-86-2
(E)-7-oxohept-2-enoic acid methyl ester
→
~10%
245118-99-4
7-methoxy-6,7-dioxoheptanoic acid
+
81677-41-0
7-methoxy-7-oxohept-5-enoate
694-54-2
四氢-2H-吡喃-2-醇
21204-67-1
methyl (triphenylphosphoranylidene)acetate