Solved: In Kekuls time, cyclohexane was unknown, and there was no proof that benzene
Chapter 0, Problem 16-31(choose chapter or problem)
In Kekuls time, cyclohexane was unknown, and there was no proof that benzene must be a six-membered ring. Determination of the structure relied largely on the known numbers of monosubstituted and disubstituted benzenes, together with the knowledge that benzene did not react like a normal alkene. The following C6H6 structures were the likely candidates:
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