1.

Punderset(2.H_(3)O^(+))overset(1.CH_(3)MgBr)toR underset(2.Delta)overset(1.dil.NaOH)to4-methylpent-3-en-2-one P is

Answer»

PROPANONE
ethanamine
ETHANENITRILE
ethanal

Solution :`underset("Ethanenitrile")(CH_(3)CN) underset(2.H_(3)O^(+))overset(1.CH_(3)MgBr)to underset("Propanone")(CH_(3)-overset(O)overset(||)(C)-CH_(3)) underset(("ALDOL condensation"))overset(1." dil. NaOH")to CH_(3)-underset(CH_(3))underset(|)overset(OH)overset(|)(C)-CH_(2)COCH_(3) underset(-H_(2)O)overset(Delta)to underset("4-Methylpent-3-en-2-one")(CH_(3)-underset(CH_(3))underset(|)overset(4)(C)=overset(3)(C)H-overset(2)(C)OCH_(3))`


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