Single Choice

The structure of product (C) is:

A
Correct Answer
B
C
D

Solution

The second mole of G.R. will react with aldehyde to give a magnesium bromide derivative of $$2^0$$ alcohol since hydrolysis is not carried out. One R group comes from G.R. Hence, the answer is (a).

SIMILAR QUESTIONS

Physical World

Which one of the following reagents reacts with both acetaldehyde and acetone?

Physical World

The reaction of $${Me}_{3}C{Mg}Cl$$ and $${ Me }_{ 3 }C-\overset { O\\ \parallel }{ C } -C{ Me }_{ 3 }$$ after hydrolysis gives a gas $$(A)$$ and a $${2}^{o}$$ alcohol $$(B)$$ rather than the expected tri-t-butyl carbinol. Provide the structures of $$(A)$$ and $$(B)$$ with explanation.

Physical World

Acetone on addition to methyl magnesium bromide forms a complex, which on decomposition with acid gives $$X$$ and $$Mg\left(OH\right)Br$$. Which one of the following is $$X$$?

Physical World

Upon reaction with $$CH_3MgBr$$ followed by protonation, the compound that produces ethanol is:

Physical World

What sequence of steps represents the best synthesis of 4-heptanol $${ \left( { CH }_{ 3 }{ CH }_{ 2 }{ CH }_{ 2 } \right) }_{ 2 }CHOH $$?

Physical World

$$CH_{3}CH_{2}-\underset{\underset{Ph}{|}}{\overset{\overset{OH}{|}}{C}} - CH_{3}$$ cannot be prepared by:

Physical World

The aldehydes which will not form Grignard product with one equivalent Grignard reagents are:

Physical World

The correct sequences of reagents for the following conversation will be:

Physical World

Reaction between acetone and methylmagnesium chloride followed by hydrolysis will give :

Physical World

Considering all possible isomeric ketones, including stereoisomers of a compound having a molecular weight of $$100$$. All these isomers are independently reacted with NaBH$$_4$$. The total number of ketones that give a racemic product(s) is/are: [Note: stereoisomers are also reacted separately]

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