InterviewSolution
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InterviewSolution
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Which of the following reactions is not correctly reported?A. `PhCH(OH)CH_(3)underset(H_(2)//Pd)overset(HClO_(4))rarrPhCH_(2)CH_(3)`B. `PhCH_(2)underset(H_(2)//Pd)overset(HClO_(4))rarrphCH_(3)`C. `Ph_(2)C(OH)CH_(2)CH_(2)OHoverset(HClO_(4))underset(H_(2)//Pd)rarrPH_(2)CHCH_(2)CH_(3)`D. `PhCOCH_(2)CH_(3)overset(HClO_(4))underset(H_(2)//Pd)rarrPhCH_(2)CH_(2)CH_(3)` |
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Answer» Correct Answer - C The process whereby `H_(2)` breaks sigma bonds is called hydrogenolysis. It is carried out by treating the alcohol with `H_(2)//Pd` containing some `HClO_(4)`. Hydrogenolysis product of `Ph_(2)C(OH)CH_(2)CH_(2)OH` is `Ph_(2)CHCH_(2)CH_(2)OH` because the nonbenzylic `OH` is not affeted. In the fourth case, the ketone is first reduced to the alcohol with this reagent. note that in the fifth case, the ring `OH` is not reduced. |
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