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Show how are the following alcohols prepared by the reaction of a suitable Grignard reagent on methanal? (i) CH_(3)-underset(CH_(3))underset("|")"CH"-CH_(2)OH (ii) |
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Answer» Solution :(i) `CH_(3)-underset(CH_(3))underset("|")"C "-CH_(2)OH` METHANAL REACTS with Grignard reagent to FORM primary alcohol. To identify the Grignard reagent, look for the part other than `-CH_(2)OH`. THEREFORE, the Grignard reagent should be isopropyl MAGNESIUM bromide. Thus,   Identify the Grignard reagent, look for the part of the product other than `-CH_(2)OH`. Therefore the Grignard reagent must be cyclohexylmagnesium bromide. Reaction takes place as under : 
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