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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 - oxidation reaction This reaction INVOLVES the addition of DIBORANE to an alkene followed by oxidation with alkaline `H_(2)O_(2)` `6CH_(3)-CH=CH_(2)+B_(2)H_(6)overset("THF")RARR 2(CH_(3)CH_(2)CH_(@))_(3)B` `(CH_(3)CH_(2)CH_(2))_(3)B+3H_(2)Ooverset(OH^(-),H_(2)O)rarr underset("Propan -1- ol")(3CH_(2)CH_(2)CH_(2))-OH+H_(3)BO_(3)` The alcohol obtained is due to anti - Markownikov.s addition of water to alkene.  , 1 - Methylcyclohexene is the major product.
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