454-93-3
3-fluorosulfonylbenzoyl chloride
→
2642-20-8
ethyl 3-(3-fluorosulfonylphenyl)-3-oxopropanoate
2488-51-9
ethyl 2-(3-(fluorosulfonyl)benzoyl)-3-oxobutanoate
2489-48-7
4-(4-hydroxyphenyl)-4-oxobut-2-enoic acid