Question

type Catalytic Mechanisms 4. Indicate the of catalytic mechanism occurring in each of the following: note 2 mechanism occur here. One for the reaction and a second for the stabilization of the alcoxide HEN -- OH + H V34 V24

Answer 1

Solution:

IN - H₂N - N II Z-I Alcohol reacted with the amide to genrate a salt, a alkoxide is in the form of salt can be further used as nucleophile to react with electrophiles. Catalytic H2SO4 H N Cl ser Nto NE ser Imine reatced with catalytic amount of H2SO4 to form iminium salt which is very reactive intermediate sucseptible for nucleophilic attack, alkoxide reacted with this reactive intermediate to for ether. HLH I-W-I R -17 Na 0 H. at Na. con H I V3+ OH + ro Na Ketone reatced with sodium borhidride, Oxygen atom pick sodium cation leaving borohydride species which can transfer hydride to the carbonyl carbon to form sodium alkoxide. Alkoxide pick proton of ethanol a protic solvent to leave behing ethoxide ion which then pick sodium cation to form sodium ethaxide and alchol.

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