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Reductions Involving Aldehydes or Ketones

LDA Lithium d...

Question

LDA (Lithium diisopropylamide) promotes formation of substituted/stable enolate.

A

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B

less

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C

thermodynamically

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Solution

The correct option is B less
LDA is bulky base thus it will abstract proton from less hindrence side and majorly formed less substituted enolate or kinetically stable enolate.

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Similar questions

LDA (Lithium diisopropylamide) promotes formation of substituted/stable enolate.

Q. Assertion : The carbonate of lithium decomposes easily on heating to form lithium oxide and

C O_{2}

.
Reason : Lithium being very small in size polarises large carbonate ion leading to the formation of more stable

L i_{2} O

C O_{2}

.

Q. Assertion :The carbonate of lithium decomposes easily on heating. Reason: Lithium being very small in size polarises large carbonate ion leading to the formation of more stable

L i_{2} O

C O_{2}

.

Q. Assertion :Lithium does not form alums. Reason: Small

[L i (H_{2} O)_{6}]^{+}

is too small to form a stable lattice required for alum formation.

Q. Assertion :As the electropositive character increases down the group, the stability of carbonates and hydrogen carbonates of alkali metals increases. Reason: Lithium carbonates are not so stable to heat: lithium being very small in size polarises a large

C O_{3}^{2 -}

leading to the formation of more stable

L i_{2} O

C O_{2}

.

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