This is the saccharin molecule that is an artificial sweetener.
Must starting from benzene, absolutely?
Why not starting from sulfonation or chlosulfonation of toluene?
What would be the substitution, in this case? Ortho-, meta, or para-?
What would be the next step after, in order to obtain the saccharin molecule?
If the synthesis must necessarily start from benzene, how toluene can be obtained?