Acid Catalysed Dehydration of Alcohols :
Alcohols in presence of dilute acid undergo dehydration forming alkenes. The reaction proceeds by `E_1` mechanism. See fig.
Dehydration of cyclic alcohol is accompanied by expansion in the above reaction. Stability of the ring is given by Baeyer strain theory, according to which the stability order of the rings is `6 > 7, 5 > 8, 9 > > 4 > 3 `.
Dehydration of cyclic alcohol is accompanied by expansion in the above reaction. Stability of the ring is given by Baeyer strain theory, according to which the stability order of the rings is `6 > 7, 5 > 8, 9 > > 4 > 3 `.