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(a) What is meant by Hydroboration-oxidation reaction ? Illustrate it with an example. (b) Predict the major product of acid catalysed dehydration of 1-methylcyclohexanol. |
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Answer» Solution :HYDROBORATION- oxidationreaction thisreactioninvolvesthe additionof diboraneto analkenefollowed by oxidationwith alkaline`H_2O_2` `6CH_3 -CH =CH_2 +B_6 H_6 OVERSET(THF) to 2 (CH_3 CH_2 CH_2) _3 B(CH_3 CH_2 CH_2) _3 B +3H_2 O_2 overset(OH^(-) ,H_2 O) tounderset("Propan -1-ol ") (3CH_2 CH_2 CH_2 -OH +H_3 BO _3` Thealcoholobtainedis dueto anti-Markownikov.sadditionof waterto alkene . |
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