The synthesis of 6–methyl–5–hepten–2–one from methyl– 4–oxo pentanoate is to be given. Concept introduction: The synthesize required can be carried out by the following steps. i) Protecting the keto group in the ketoester by treating with a diol ii) reduction of the ester to a primary alcohol iii) oxidation of the primary alcohol to aldehyde iv) Wittig reaction of the aldehyde with a phosphorus ylide. v) removal of the acetol linkage by hydrolysis. To give: The synthesis of 6–methyl–5–hepten–2–one from methyl– 4–oxo pentanoate.

Question

5. A buffer consists of 0.45 M NH, and 0.25 M NH-CI (PK of NH 474) Calculate the pH of the butter. Ans: 9.52 BAS PH-9.26 +10g (10.95)) 14-4.59 PH=4.52 6. To 500 ml of the buffer on #5 a 0.20 g of sample of NaOH was added a Write the net ionic equation for the reaction which occurs b. Should the pH of the solution increase or decrease sightly? Calculate the pH of the buffer after the addition Ans: 9.54

Answer 1

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 19.SE, Problem 77AP

Interpretation Introduction

Interpretation:

The synthesis of 6–methyl–5–hepten–2–one from methyl– 4–oxo pentanoate is to be given.

Concept introduction:

The synthesize required can be carried out by the following steps. i) Protecting the keto group in the ketoester by treating with a diol ii) reduction of the ester to a primary alcohol iii) oxidation of the primary alcohol to aldehyde iv) Wittig reaction of the aldehyde with a phosphorus ylide. v) removal of the acetol linkage by hydrolysis.

To give:

The synthesis of 6–methyl–5–hepten–2–one from methyl– 4–oxo pentanoate.

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5. A buffer consists of 0.45 M NH, and 0.25 M NH-CI (PK of NH 474) Calculate the pH of the butter. Ans: 9.52 BAS PH-9.26 +10g (10.95)) 14-4.59 PH=4.52 6. To 500 ml of the buffer on #5 a 0.20 g of sample of NaOH was added a Write the net ionic equation for the reaction which occurs b. Should the pH of the solution increase or decrease sightly? Calculate the pH of the buffer after the addition Ans: 9.54

Explain the inductive effect (+I and -I) in benzene derivatives.

The inductive effect (+I and -I) in benzene derivatives, does it guide ortho, meta or para?

Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 19.SE, Problem 77AP

Interpretation Introduction

Interpretation:

The synthesis of 6–methyl–5–hepten–2–one from methyl– 4–oxo pentanoate is to be given.

Concept introduction:

The synthesize required can be carried out by the following steps. i) Protecting the keto group in the ketoester by treating with a diol ii) reduction of the ester to a primary alcohol iii) oxidation of the primary alcohol to aldehyde iv) Wittig reaction of the aldehyde with a phosphorus ylide. v) removal of the acetol linkage by hydrolysis.

To give:

The synthesis of 6–methyl–5–hepten–2–one from methyl– 4–oxo pentanoate.

Expert Solution & Answer

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See solution

Check out sample textbook solution

Answer 3

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 19.SE, Problem 77AP

Interpretation Introduction

Interpretation:

The synthesis of 6–methyl–5–hepten–2–one from methyl– 4–oxo pentanoate is to be given.

Concept introduction:

The synthesize required can be carried out by the following steps. i) Protecting the keto group in the ketoester by treating with a diol ii) reduction of the ester to a primary alcohol iii) oxidation of the primary alcohol to aldehyde iv) Wittig reaction of the aldehyde with a phosphorus ylide. v) removal of the acetol linkage by hydrolysis.

To give:

The synthesis of 6–methyl–5–hepten–2–one from methyl– 4–oxo pentanoate.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 19.SE, Problem 77AP

Interpretation Introduction