Which structure represents an ester enolate? a) I b)II c) III d)IV e) Two of the
ID: 1052572 • Letter: W
Question
Which structure represents an ester enolate? a) I b)II c) III d)IV e) Two of these choices. Which of these compounds would exist in an enol form to the greatest extent? Which of these halides is predicted to alkylate malonic ester (as the anion) in highest yield? a) CH_3I b) C_6H_5Br c) (CH_3)_3CCH_2CI d) CH_3CHCICH_3 Cyclization reactions, such as the Dieckmann condensation, are best earned out using fairly dilute solutions of the compound to be cyclized. Why is this so? a) It then is possible to use less base.Explanation / Answer
2)
An ester is of the form
R-COO-R'
when R is an anion, it is called enolate
Answer: b) II
3)
Answer: b
here H of CH2 that is between 2 -C=O is very acidic as the anion formed after H+ is removed is stabilised by -M effect of both -C=O group.
So it will be existing in enol form
I am allowed to answer only 1 question at a time
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