Given that the reaction of (S)-3-methyl-2-pentanone with methylmagnesium bromide followed by acidification yields 2,3-dimethyl-2-pentanol. The stereochemistry of the product is to be given and whether it is optically active or not is to be stated. Concept introduction: If during a reaction of an optically active compound a new chiral centre is created, it will lead to the formation of diastereomers in different proportions resulting in an optically active mixture. If a new chiral centre is not created then also the product will be optically active since the chirality of the other carbon remains unaffected during the course of the reaction. To give: The stereochemistry of the product, 2,3-dimethyl-2-pentanol, formed in the reaction of (S)-3-methyl-2-pentanone with methylmagnesium bromide followed by acidification. To state: Whether the product is optically active or not.

Question

1d. Use Le Chatelier's principle to describe the effect of the following changes on the position of the Haber-Bosch equilibrium: N2(g) + 3H2(g)= 2NH3(9) AH = -92kJ Choose one of the following answers: shift to reactant side, shift to product side or no change and draw the resulting graph. I. Increase the [N2(g)] Effect: H₂ N₂ NH3 II. Decrease the volume of the container. Effect: H₂ N₂2 NH3

Answer 1

Question

Chapter 17.SE, Problem 61AP

Interpretation Introduction

Interpretation:

Given that the reaction of (S)-3-methyl-2-pentanone with methylmagnesium bromide followed by acidification yields 2,3-dimethyl-2-pentanol. The stereochemistry of the product is to be given and whether it is optically active or not is to be stated.

Concept introduction:

If during a reaction of an optically active compound a new chiral centre is created, it will lead to the formation of diastereomers in different proportions resulting in an optically active mixture. If a new chiral centre is not created then also the product will be optically active since the chirality of the other carbon remains unaffected during the course of the reaction.

To give:

The stereochemistry of the product, 2,3-dimethyl-2-pentanol, formed in the reaction of (S)-3-methyl-2-pentanone with methylmagnesium bromide followed by acidification.

To state:

Whether the product is optically active or not.

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