The two different methods to carry out the given transformation; a one-step method using a Wittig reaction, and a two-step method using a Grignard reagent are to be stated and the preferred route is to be identified. Concept introduction: The Wittig reaction is always preferred for the synthesis of alkene rather than other elimination reactions. The mostly elimination methods generally gives mixture of constitutional isomers, through E1 reaction.

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Answer 1

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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 18, Problem 56P

Interpretation Introduction

Interpretation: The two different methods to carry out the given transformation; a one-step method using a Wittig reaction, and a two-step method using a Grignard reagent are to be stated and the preferred route is to be identified.

Concept introduction: The Wittig reaction is always preferred for the synthesis of alkene rather than other elimination reactions. The mostly elimination methods generally gives mixture of constitutional isomers, through E1 reaction.

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Draw the complete mechanism for the reaction below. Please include appropriate arrows, intermediates, and formal charges.

(c) The following data have been obtained for the hydrolysis of sucrose, C12H22O11, to glucose, C6H12O6, and fructose C6H12O6, in acidic solution: C12H22O11 + H2O → C6H12O6 + C6H12O6 [sucrose]/mol dm³ t/min 0 0.316 14 0.300 39 0.274 60 0.256 80 0.238 110 0.211 (i) Graphically prove the order of the reaction and determine the rate constant of the reaction. (ii) Determine the half-life, t½ for the hydrolysis of sucrose.

(III) adsorbent (b) Adsorption of the hexacyanoferrate (III) ion, [Fe(CN)6] ³, on y-Al2O3 from aqueous solution was examined. The adsorption was modelled using a modified Langmuir isotherm, yielding the following values of Kat pH = 6.5: (ii) T/K 10-10 K 280 2.505 295 1.819 310 1.364 325 1.050 Determine the enthalpy of adsorption, AadsHⓇ. If the reported value of entropy of adsorption, Aads Se = 146 J K-1 mol-1 under the above conditions, determine Aads Gº.

Answer 2

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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 18, Problem 56P

Interpretation Introduction

Interpretation: The two different methods to carry out the given transformation; a one-step method using a Wittig reaction, and a two-step method using a Grignard reagent are to be stated and the preferred route is to be identified.

Concept introduction: The Wittig reaction is always preferred for the synthesis of alkene rather than other elimination reactions. The mostly elimination methods generally gives mixture of constitutional isomers, through E1 reaction.

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Answer 3

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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 18, Problem 56P

Interpretation Introduction

Interpretation: The two different methods to carry out the given transformation; a one-step method using a Wittig reaction, and a two-step method using a Grignard reagent are to be stated and the preferred route is to be identified.

Concept introduction: The Wittig reaction is always preferred for the synthesis of alkene rather than other elimination reactions. The mostly elimination methods generally gives mixture of constitutional isomers, through E1 reaction.

Expert Solution & Answer

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Check out a sample textbook solution

See 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 18, Problem 56P

Interpretation Introduction