Chapter 8, Problem 45P

(a)

Interpretation Introduction

Interpretation: The structure of product with ethyl magnesium bromide with indicated carbonyl compound should be written.

  

Concept introduction:The carbonyl bond is polar with the partial positive charge on carbon and partial negative charge on oxygen as illustrated below.

  

Grignard reagents are alkyl magnesium halides obtained from treatment of haloalkane with magnesium in presence of dried ether conditions. This reagent is useful precursor for quick synthesis of variety of organic compounds For example, the reaction of Grignard reagent with aldehyde or ketone generates alcohol as illustrated below.

  

Methyl bromide reacts with magnesium ether to give Grignard reagent. This Grignard methyl magnesium bromide on treatment with formaldehyde gives corresponding alcohol.

Chiral carbon is any stereocenter attached to four different alkyl substituents. It is also known as stereocenter. If any two of the substituent happen to be similar the center is regarded as achiral.

(b)

Interpretation Introduction

Interpretation: The structure of product with ethyl magnesium bromide with indicated carbonyl compound should be written and any stereoisomers formed and whether they are formed in equal or unequal numbers should be identified.

  

Concept introduction:The carbonyl bond is polar with the partial positive charge on carbon and partial negative charge on oxygen as illustrated below.

  

Grignard reagents are alkyl magnesium halides obtained from treatment of haloalkane with magnesium in presence of dried ether conditions. This reagent is useful precursor for quick synthesis of variety of organic compounds For example, the reaction of Grignard reagent with aldehyde or ketone generates alcohol as illustrated below.

  

Methyl bromide reacts with magnesium ether to give Grignard reagent. This Grignard methyl magnesium bromide on treatment with formaldehyde gives corresponding alcohol.

The enantiomers are identical chemical compounds that have a mirror-image relationship to each other while diastereomers do not hold mirror image relationships. The former are chiral and optically active while the latter can be chiral or achiral. Together enantiomers and diastereomers constitute the total stereoisomers of any chiral compound.

(c)

Interpretation Introduction

Interpretation: The structure of product with ethyl magnesium bromide with indicated carbonyl compound should be written and any stereoisomers formed and whether they are formed in equal or unequal numbers should be identified.

  

Concept introduction: The carbonyl bond is a polar with the partial positive charge on carbon and partial negative charge on oxygen as illustrated below.

  

Grignard reagents are alkyl magnesium halides obtained from treatment of haloalkane with magnesium in presence of dried ether conditions. This reagent is useful precursor for quick synthesis of variety of organic compounds For example, the reaction of Grignard reagent with aldehyde or ketone generates alcohol as illustrated below.

  

Methyl bromide reacts with magnesium ether to give Grignard reagent. This Grignard methyl magnesium bromide on treatment with formaldehyde gives corresponding alcohol.

The enantiomers are identical chemical compounds that have a mirror-image relationship to each other while diastereomers do not hold mirror image relationships. The former are chiral and optically active while the latter can be chiral or achiral. Together enantiomers and diastereomers constitute the total stereoisomers of any chiral compound.

(d)

Interpretation Introduction

Interpretation: The structure of product with ethyl magnesium bromide with indicated carbonyl compound should be written and any stereoisomers formed and whether they are formed in equal or unequal numbers should be identified.

  

Concept introduction: The carbonyl bond is polar with the partial positive charge on carbon and partial negative charge on oxygen as illustrated below.

  

Grignard reagents are alkyl magnesium halides obtained from treatment of haloalkane with magnesium in presence of dried ether conditions. This reagent is useful precursor for quick synthesis of variety of organic compounds For example, the reaction of Grignard reagent with aldehyde or ketone generates alcohol as illustrated below.

  

Methyl bromide reacts with magnesium ether to give Grignard reagent. This Grignard methyl magnesium bromide on treatment with formaldehyde gives corresponding alcohol.

The enantiomers are identical chemical compounds that have a mirror-image relationship to each other while diastereomers do not hold mirror image relationships. The former are chiral and optically active while the latter can be chiral or achiral. Together enantiomers and diastereomers constitute the total stereoisomers of any chiral compound.

(e)

Interpretation Introduction

Interpretation: The structure of product with ethyl magnesium bromide with indicated carbonyl compound should be written and any stereoisomers formed and whether they are formed in equal or unequal numbers should be identified.

  

Concept introduction: The carbonyl bond is polar with the partial positive charge on carbon and partial negative charge on oxygen as illustrated below.

  

Grignard reagents are alkyl magnesium halides obtained from treatment of haloalkane with magnesium in presence of dried ether conditions. This reagent is useful precursor for quick synthesis of variety of organic compounds For example, the reaction of Grignard reagent with aldehyde or ketone generates alcohol as illustrated below.

  

Methyl bromide reacts with magnesium ether to give Grignard reagent. This Grignard methyl magnesium bromide on treatment with formaldehyde gives corresponding alcohol.

The enantiomers are identical chemical compounds that have a mirror-image relationship to each other while diastereomers do not hold mirror image relationships. The former are chiral and optically active while the latter can be chiral or achiral. Together enantiomers and diastereomers constitute the total stereoisomers of any chiral compound.

(f)

Interpretation Introduction

Interpretation: The structure of product with ethyl magnesium bromide with indicated carbonyl compound should be written.

  

Concept introduction: The carbonyl bond is polar with the partial positive charge on carbon and partial negative charge on oxygen as illustrated below.

  

Grignard reagents are alkyl magnesium halides obtained from treatment of haloalkane with magnesium in presence of dried ether conditions. This reagent is useful precursor for quick synthesis of variety of organic compounds For example, the reaction of Grignard reagent with aldehyde or ketone generates alcohol as illustrated below.

  

Methyl bromide reacts with magnesium ether to give Grignard reagent. This Grignard methyl magnesium bromide on treatment with formaldehyde gives corresponding alcohol.

Chiral carbon is any stereocenter attached to four different alkyl substituents. It is also known as stereocenter. If any two of the substituent happen to be similar the center is regarded as achiral.

(g)

Interpretation Introduction

Interpretation: The structure of product with ethyl magnesium bromide with indicated carbonyl compound should be written and any stereoisomers formed and whether they are formed in equal or unequal numbers should be identified.

  

Concept introduction: The carbonyl bond is polar with the partial positive charge on carbon and partial negative charge on oxygen as illustrated below.

  

Grignard reagents are alkyl magnesium halides obtained from treatment of haloalkane with magnesium in presence of dried ether conditions. This reagent is useful precursor for quick synthesis of variety of organic compounds For example, the reaction of Grignard reagent with aldehyde or ketone generates alcohol as illustrated below.

  

Methyl bromide reacts with magnesium ether to give Grignard reagent. This Grignard methyl magnesium bromide on treatment with formaldehyde gives corresponding alcohol.

The enantiomers are identical chemical compounds that have a mirror-image relationship to each other while diastereomers do not hold mirror image relationships. The former are chiral and optically active while the latter can be chiral or achiral. Together enantiomers and diastereomers constitute the total stereoisomers of any chiral compound.

(h)

Interpretation Introduction

Interpretation: The structure of product with ethyl magnesium bromide with indicated carbonyl compound should be written and any stereoisomers formed and whether they are formed in equal or unequal numbers should be identified.

  

Concept introduction: The carbonyl bond is polar with the partial positive charge on carbon and partial negative charge on oxygen as illustrated below.

  

Grignard reagents are alkyl magnesium halides obtained from treatment of haloalkane with magnesium in presence of dried ether conditions. This reagent is useful precursor for quick synthesis of variety of organic compounds For example, the reaction of Grignard reagent with aldehyde or ketone generates alcohols as illustrated below.

  

Methyl bromide reacts with magnesium ether to give Grignard reagent. This Grignard methyl magnesium bromide on treatment with formaldehyde gives corresponding alcohol.

Chiral carbon is any stereocenter attached to four different alkyl substituents. It is also known as stereocenter. If any two of the substituent happen to be similar the center is regarded as achiral. However the most essential criteria that help to distinguish a chiral or non-chiral system is Presence of any symmetry element.

The enantiomers are identical chemical compounds that have a mirror-image relationship to each other while diastereomers do not hold mirror image relationships. The former are chiral and optically active while the latter can be chiral or achiral. Together enantiomers and diastereomers constitute the total stereoisomers of any chiral compound.

(i)

Interpretation Introduction

Interpretation: The structure of product with ethyl magnesium bromide with indicated carbonyl compound should be written and any stereoisomers formed and whether they are formed in equal or unequal numbers should be identified.

  

Concept introduction: The carbonyl bond is polar with the partial positive charge on carbon and partial negative charge on oxygen as illustrated below.

  

Grignard reagents are alkyl magnesium halides obtained from treatment of haloalkane with magnesium in presence of dried ether conditions. This reagent is useful precursor for quick synthesis of variety of organic compounds For example, the reaction of Grignard reagent with aldehyde or ketone generates alcohol as illustrated below.

  

Methyl bromide reacts with magnesium ether to give Grignard reagent. This Grignard methyl magnesium bromide on treatment with formaldehyde gives corresponding alcohol.

Chiral carbon is any stereocenter attached to four different alkyl substituents. The enantiomers are identical chemical compounds that have a mirror-image relationship to each other while diastereomers do not hold mirror image relationships. The former are chiral and optically active while the latter can be chiral or achiral. Together enantiomers and diastereomers constitute the total stereoisomers of any chiral compound.

(j)

Interpretation Introduction

Interpretation: The structure of product with ethyl magnesium bromide with indicated carbonyl compound should be written and any stereoisomers formed and whether they are formed in equal or unequal numbers should be identified.

  

Concept introduction: The carbonyl bond is polar with the partial positive charge on carbon and partial negative charge on oxygen as illustrated below.

  

Grignard reagents are alkyl magnesium halides obtained from treatment of haloalkane with magnesium in presence of dried ether conditions. This reagent is useful precursor for quick synthesis of variety of organic compounds For example, the reaction of Grignard reagent with aldehyde or ketone generates alcohol as illustrated below.

  

Methyl bromide reacts with magnesium ether to give Grignard reagent. This Grignard methyl magnesium bromide on treatment with formaldehyde gives corresponding alcohol.

Chiral carbon is any stereocenter attached to four different alkyl substituents. The enantiomers are identical chemical compounds that have a mirror-image relationship to each other while diastereomers do not hold mirror image relationships. The former are chiral and optically active while the latter can be chiral or achiral. Together enantiomers and diastereomers constitute the total stereoisomers of any chiral compound.