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  • 7/30/2019 Orgo Functional Groups

    1/3

  • 7/30/2019 Orgo Functional Groups

    2/3

    Chem Factsheet

    2

    Reactions of Functional Groups - A Summary

    Grignard Reagent

    "R-MgHal"Halogenoalkane

    Alkane

    Grignard Reagents

    Preparation

    addition

    Mg turnings

    Dry ether solvent

    Boil under reflux

    Reactions

    Grignard Reagent

    "R-MgHal"

    Primary

    Alcohol

    Secondary

    Alcohol

    Tertiary

    Alcohol

    Carboxylic

    Acid

    nucleophilic

    addition / hydrolysis

    nucleophilic

    addition / hydrolysis

    nucleophilic

    substitution

    nucleophilic

    addition / hydrolysis

    nucleophilic

    addition / hydrolysis

    H2O

    CO2(g)

    + H2O(l)

    H+(aq)

    H+(aq)

    ketone

    + H2O(l)

    CH2=O(g)

    + H2O(l)

    H+(aq)

    aldehyde (not methanal)

    + H2O(l)

    methanal,

    then use

    dilute acid

    for hydrolysis

    Ester

    Carboxylic

    Acid

    Polyester

    Alcohol

    Acyl ChlorideSodium Salt +

    CO2

    + H2O

    reduction

    nucleophilic substitution /

    polymerisation

    nucleophilic

    substitution

    nucleophilic

    substitutionneutralisation

    alcohol

    Na2CO

    3

    or NaHCO3aqueous

    LiAlH4

    then

    H+(aq)

    dry

    Diacid

    +

    Diol

    PCl5

    LiAlH4

    in

    dry ether

    H+(aq)

    boil under reflux

    conc. H2SO

    4

    Carboxylic Acid Reactions

    Ester Reactions

    Carboxylic acid

    +

    Alcoholalkaline

    conditions

    acid

    conditions

    Carboxylic acid

    +

    Alcohol

    Ester

    H2O H

    2O

    Carboxylic

    acid

    AcylChloride

    Ester

    AmideN-substituted

    Amide

    nucleophilic

    substitution

    nucleophilic

    substitution

    alcohol

    primary

    amine NH3

    H2O

    nucleophilic

    substitution

    nucleophilic

    substitution

    Acyl Chloride Reactions

    Hydroxy-nitrile

    compound

    Aldehydes

    PrimaryAlcohol

    Primary

    Alcohol

    Positive Fehlings

    Test

    Positive Silver

    Mirror Test

    reduction

    reduction

    nucleophilic addition

    redox

    redox

    HCN

    silver

    nitrate in

    ammonia

    solutionwarm

    warm

    Fehlings

    solution

    NaBH4

    in

    ethanoltrace of

    KOH LiAlH4

    in ether

    2,4-DNP

    Derivative

    nucleophilic

    addition then

    elimination

    2,4-DNP in

    ethanolH

    2SO

    4

    Reactions of Aldehydes

    Fig. 3 Halogenoalkane reactions

    Halogenoalkane

    nucleophilic

    substitution

    Nitrile Alcohol

    nucleophilic

    substitution

    Amines Alkenenucleophilic

    eliminationnucleophilic

    substitution

    KCN in

    water/ethanol

    heat under

    reflux

    heat

    NH3

    in

    ethanol

    NaOH(aq)

    heat under

    reflux

    KOH in

    ethanolheat under

    reflux

  • 7/30/2019 Orgo Functional Groups

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    Chem Factsheet

    3

    Reactions of Functional Groups - A Summary

    Hydroxy-nitrile

    compound

    Ketones

    Secondary

    Alcohol

    Secondary

    Alcoholreduction

    reduction

    nucleophilic addition

    HCN

    NaBH4

    in

    ethanoltrace of

    KOH LiAlH4

    in ether

    2,4-DNP

    Derivative

    nucleophilic addition then

    elimination

    2,4-DNP in

    H2SO

    4

    Reactions of Aldehydes

    Reactions of Amines

    Salts

    Amines

    Substituted

    Amides

    nucleophilic

    substitution

    nucleophilic addition /

    neutralisation

    acid

    acyl chloride

    Polyamides

    nucleophilic substitution

    polymerisation

    primary amines + acyl chlorides

    if monomers contain 2 amine

    groups and 2 acyl chloride groups

    Reactions of Nitrites

    Carboxylic

    acid salt Nitriles

    Carboxylic

    acid

    hydrolysishydrolysis

    acidalkali

    Amine

    reduction

    heat under

    reflux

    heat under

    reflux

    LiAlH4

    in ether

    Reactions of Amides

    Nitrile Amides Amine +CO

    2

    hydrolysisdehydration

    Br2(l) +

    NaOH(aq)P4O10

    warm warm

    Salt Amino Acids

    neutralisation

    alkaliacid

    Reactions of Amino Acids

    Salt

    neutralisation

    Reactions of Phenol

    Phenate ion

    Phenol

    2,4,6-

    tribromophenol

    electrophilic substitutionneutralisation

    OH-(aq)

    Br2(aq)

    Ester

    nucleophilic substitution

    acyl chloride,

    in NaOH(aq)

    Benzene

    Bromobenzene

    electrophilic substitution

    Fe cat.

    dry

    Br2

    Nitrobenzene

    Fe cat. dry

    Br2

    HNO3

    50oC conc

    H2SO

    4

    Alkylbenzene

    electrophilic substitution electrophilic substitution

    Phenylamine

    reduction

    Benzocarboxylic

    acid

    oxidation

    in alkali

    heat under

    reflux

    KMnO4

    Sn,

    conc. HCL,

    NaOH

    HNO2

    +

    HCl

    Benzenediazonium

    ions

    Acknowledgements: This Factsheet was researched and written by Kieron Heath

    Curriculum Press, Unit 305B, The Big Peg, 120 Vyse Street, Birmingham, B18 6NF

    ChemistryFactsheetsmay be copied free of charge by teaching staff or students, provided that

    their school is a registered subscriber. No part of these Factsheets may be reproduced, stored

    in a retrieval system, or transmitted, in any other form or by any other means, without the

    prior permission of the publisher.ISSN 1351-5136

    Reactions of Benzene