Which compound will be expected in each step and explain what is happening between each reagent...

Question

Question

Which compound will be expected in each step and explain what is happening between each reagent

НО ОН Excess 1,3 diol NaCN А B Excess H2O, heat с & H2O+ catalyst Br 8 HCN & H3O+ catalyst OH CEN HO Br III Br NEC- IV

science chemistry

Answer 1

Answer #1

Answer

A - IV

B - II

C - III

Explanation

step 1: Protection of ketone functional group using 1,3-diol.

+ 1,3-diol $\rightarrow$ IV (A)

step 2: SN² substitution of Br^- using CN^- as the nucleophile

+ CN^- $\rightarrow$ II (B)

step 3: Hydrolysis of CN group and simultaneous deprotection of ketone functional group

+ H₃O⁺ $\rightarrow$ о ОН 0 о III (C)

Answer 2

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