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AMINES
86問 • 8ヶ月前
  • HERSHEY VALERIE BERNARDINO
    • 通報

    問題一覧

  • 1

    Organic compounds coposed of an amino group (-NH2)

    amines

  • 2

    Derivatives of ammonia in which one or more of the hyfrogens has been replaced by an alkyl or aryl group

    amines

  • 3

    These groups of compounds are classified as primary, secondary, or tertiary amines depending on the number of alkyl or aryl group directly bonded to the nitrogen atom

    amines

  • 4

    Synthesis of amines are commonly prepared through _____ reactions of nitro, nitrites, and amino compounds

    reduction

  • 5

    Usually prepared by direct alkylation of ammonia by alkyl halides, although alternative procedures are more preferred

    primary amines

  • 6

    The genral strategy in synthesis of amines is to first form a carbon-nitrogen bond by reacting a nitrogen nucleophile with a crabon electrophile

    true

  • 7

    Extraneous nitrogen substituents that may have facilitated the bonding are removed, thereby producing the _____ product

    amine

  • 8

    Aniline in reaction with conc. HCl

    formation of solid product and smoke

  • 9

    Most amines are bronsted-Lewis ____ but there alkaline strength largely depends on the substituents attached to the amino compound

    base

  • 10

    Amines react with acids, accepting _____ to form salt products

    protons

  • 11

    Aniline in reaction with bromine water

    clear colorless solution w/ white precipitate

  • 12

    Amines may react with bromine water, producing a decolorized solution with _____ precipitate

    white

  • 13

    Reaction of aniline with bromine water is the same with phenol, however, the product formed results to 2,4,6-tribromophenylamine which appears as white precipitate with a side product of _____ acid which results to decolorazation of the solution

    hydrobromic

  • 14

    Reaction of aniline with bromine water

    electrophilic aromatic substitution

  • 15

    Changes of aniline upon addition of HCl in Hinsberg's test

    formation of precipitate

  • 16

    Changes of N-methyl aniline upon addition of HCl

    formation of precipitate

  • 17

    Changes of N,N-dimethyl aniline upon addition of HCl

    clear colorless solution

  • 18

    Test to differentiate primary, secondary, & tertiary amines

    Hinsberg's test

  • 19

    Uses the reagent benzene sulfonyl chloride

    Hinsberg's test

  • 20

    Test that has a positive result of sulfonamides from primary amines are soluble in water and re-precipitating with dilute HCl whie those from secondary amines are insoluble in water and dilute HCl

    Hinsberg's test

  • 21

    Principle of Hinsberg's test

    primary and secondary amines react with benzene sulfonyl chloride to give solid sulfonamide derivatives whereas,tertiary amines do not give any product other than the starting amine; this test is conducted in aqueous base (NaOH, KOH) and the benzene sulfonyl chloride reagent appears as an insoluble oil

  • 22

    Aniline in reaction withb nitrous acid

    formation of effervescence

  • 23

    1% glycine in reaction with nitrous acid

    formation of effervescence

  • 24

    Test to differentiate primary, secondary, and tertiary amines

    reaction of nitrous acid

  • 25

    Positive result of primary amine in reaction with nitrous acid

    formation of effervescence

  • 26

    Positive result of secondary amine in reaction with nitrous aid

    yellow, oily layer

  • 27

    Positive result of tertiary amine in reaction with nitrous acid

    clear colorless solution

  • 28

    Principle of primary amines in reaction with nitrous acid

    forms nitrogen gas with an alcohol as product

  • 29

    Principle of secondary amines in reaction with nitrous acid

    produce N-nitrosamine

  • 30

    Principle of tertiary amines in reaction with nitrous acid

    produce water-soluble ammonium salts

  • 31

    Group of organic chemicals usually composed of benzene and its homologues with ana attached (-NO2)

    nitro

  • 32

    Includes itrobenzene, picric acid (trinitrophenol), and TNT (trinitrotoluene)

    nitro

  • 33

    Nitrogen of nitro compounds has a formal _____ charge, which is a strong electrophile

    postive

  • 34

    When the nitro group is attached to an aromatic ring, the positive nitrogen drains the electron density of the ortho and para positions in the benzene ring, which renders these positions unreactive

    true

  • 35

    Nitrobenzene in ferrrous hydroxide test

    reddish brown precipitate

  • 36

    Test to identify nitro compounds

    Ferrous hydroxide test

  • 37

    Uses ferrous ammonium sulfate, sulfuric acid, and alcoholic KOH solution as reagents

    Ferrous hydroxide test

  • 38

    Positive result in ferrous hydroxide test

    reddish brown precipitate

  • 39

    In ferrous hydroxide test, nitro compounds ____ ferous hyroxide forming a reddish brown precipitate of ferric hydroxide, while nitro is _____ to a primary amine

    oxidize-reduce

  • 40

    In most cases, all nitro compounds immediately yield a positive result, while the rate of chemical reaction is _____ on the solubility of the nitro compound

    dependent

  • 41

    Nitrobenzene in Javonsky's test

    light yellow solution

  • 42

    Picric acid in Javonsky's test

    blood red solution

  • 43

    2,4-dinitrobenzene in Javonsky's test

    bluish-purple solution

  • 44

    During the later 19th century, Javonsky discovered that when nitro compounds are treated with _____ in an alkaline environment, these compounds will yield colored complexes due to the formation of Meisenheimer complexes

    acetone

  • 45

    Mono-nitro substituted benzene will give

    light yellow solution

  • 46

    Di-nitro substituted benzene will give

    bluish-purple solution

  • 47

    Tri-nitro substituted benzene will give

    blood red solution

  • 48

    Buiding blocks or macromolecules protein

    peptides, amino acids

  • 49

    Its structure is composed of a carboxyl group, an amino group, and substsituent groups all attached to an a-carbon

    amino acids

  • 50

    Amino acids form _____ through a nucleophilic attack on the carbonyl action of the carboxyl group of one amino acid by the amino group of another amino acid

    polymers

  • 51

    Formation of amide bonds in between two linked acids results to

    peptide

  • 52

    When the link of amino acids is long enough, it produces the macromolecule _____

    protein

  • 53

    1% glycine in nihydrin test

    blue solution

  • 54

    Aniline in nihydrin test

    golden brown solution

  • 55

    General test for the presence of amino acids

    Nihydrin test

  • 56

    A yellow solution which is a very strong oxidizing agent

    nihydrin

  • 57

    Positive result of nihydrin test

    blue to purple solution

  • 58

    Test where nihyrdin reacts with the amino acid producing an intermediate product hydrindantin, which further reacts forming Ruhemann's complex

    nihydrin test

  • 59

    Produces a bright yellow color

    proline

  • 60

    Yields a brown-colored product

    asparagine

  • 61

    Urea in biuret test

    purple or pink solution

  • 62

    1% albumin in biuret test

    purple solution

  • 63

    1% tyrosine in biuret tests

    blue solution

  • 64

    1% glycine in biuret test

    blue solution

  • 65

    General test for peptides

    Biuret tests

  • 66

    Uses cupric sulfate in alkaline solution as reagent

    Biuret test

  • 67

    Biuret test positive result

    purple solution

  • 68

    Compound produced when urea is heated at 180*C

    biuret

  • 69

    When treated with dilute cupric sulfate in alkaline condition, a purple colored product is formed

    Biuret test

  • 70

    This chemical reaction is widely employed to detect the presence of proteins and peptides (especially in medlical diagnostic festing)

    Biuret tests

  • 71

    Color produced in biuret test due to the formation of coodination complex of cupric ions with the unshared electron pairs of peptide nitrogen and the oxygen in water

    purple

  • 72

    Naturally occuring organic compounds containing basic nitrogen atoms

    alkaloids

  • 73

    Very diverse biomolecules, but all are secondary metabolites derived from amino acids or from transamination process

    alkaloids

  • 74

    Commonly have medicinal properties such as local anesthetics, stimulants, and even as an antimalarial

    alkaloids

  • 75

    Have bitter taste, mostly colorless, crystalline in structure

    alkaloids

  • 76

    Can be classified intro bological and ecological activity, chemical strucctures and biosynthetic pathway

    alkaloids

  • 77

    Alkaloids derived from amino acids and share a heterocyclic ring with nitrogen

    true alkaloids

  • 78

    Alkaloid compounds in which the nitrogen dervied from an amino acid is not part of the heterocyclic ring

    protoalkaloids

  • 79

    Alkaloids whose basic carbon skeletons are not derived from amino acids

    pseudoalkaloids

  • 80

    Qualitative chemical tests can be employed to detect the presence of alkaloids though the formation of _____

    precipitates

  • 81

    Most of these reagents consists of dehydrating, oxidizing or a combination of the two agents

    alkaloid precipitants

  • 82

    Potassium bismuth iodide solution using Dragendorff's reagent

    orange precipitate

  • 83

    Potassium mercuric iodide solution using Mayer's reagent

    cream precipitate

  • 84

    Iodine potassium iodide solution using Wagner's solution

    reddish brown precipitate

  • 85

    Mercuric iodide solution using Valser's reagent

    white precipitate

  • 86

    Saturated picric acid solution using Hoger's reagent

    yellow precipitate

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    問題一覧

  • 1

    Organic compounds coposed of an amino group (-NH2)

    amines

  • 2

    Derivatives of ammonia in which one or more of the hyfrogens has been replaced by an alkyl or aryl group

    amines

  • 3

    These groups of compounds are classified as primary, secondary, or tertiary amines depending on the number of alkyl or aryl group directly bonded to the nitrogen atom

    amines

  • 4

    Synthesis of amines are commonly prepared through _____ reactions of nitro, nitrites, and amino compounds

    reduction

  • 5

    Usually prepared by direct alkylation of ammonia by alkyl halides, although alternative procedures are more preferred

    primary amines

  • 6

    The genral strategy in synthesis of amines is to first form a carbon-nitrogen bond by reacting a nitrogen nucleophile with a crabon electrophile

    true

  • 7

    Extraneous nitrogen substituents that may have facilitated the bonding are removed, thereby producing the _____ product

    amine

  • 8

    Aniline in reaction with conc. HCl

    formation of solid product and smoke

  • 9

    Most amines are bronsted-Lewis ____ but there alkaline strength largely depends on the substituents attached to the amino compound

    base

  • 10

    Amines react with acids, accepting _____ to form salt products

    protons

  • 11

    Aniline in reaction with bromine water

    clear colorless solution w/ white precipitate

  • 12

    Amines may react with bromine water, producing a decolorized solution with _____ precipitate

    white

  • 13

    Reaction of aniline with bromine water is the same with phenol, however, the product formed results to 2,4,6-tribromophenylamine which appears as white precipitate with a side product of _____ acid which results to decolorazation of the solution

    hydrobromic

  • 14

    Reaction of aniline with bromine water

    electrophilic aromatic substitution

  • 15

    Changes of aniline upon addition of HCl in Hinsberg's test

    formation of precipitate

  • 16

    Changes of N-methyl aniline upon addition of HCl

    formation of precipitate

  • 17

    Changes of N,N-dimethyl aniline upon addition of HCl

    clear colorless solution

  • 18

    Test to differentiate primary, secondary, & tertiary amines

    Hinsberg's test

  • 19

    Uses the reagent benzene sulfonyl chloride

    Hinsberg's test

  • 20

    Test that has a positive result of sulfonamides from primary amines are soluble in water and re-precipitating with dilute HCl whie those from secondary amines are insoluble in water and dilute HCl

    Hinsberg's test

  • 21

    Principle of Hinsberg's test

    primary and secondary amines react with benzene sulfonyl chloride to give solid sulfonamide derivatives whereas,tertiary amines do not give any product other than the starting amine; this test is conducted in aqueous base (NaOH, KOH) and the benzene sulfonyl chloride reagent appears as an insoluble oil

  • 22

    Aniline in reaction withb nitrous acid

    formation of effervescence

  • 23

    1% glycine in reaction with nitrous acid

    formation of effervescence

  • 24

    Test to differentiate primary, secondary, and tertiary amines

    reaction of nitrous acid

  • 25

    Positive result of primary amine in reaction with nitrous acid

    formation of effervescence

  • 26

    Positive result of secondary amine in reaction with nitrous aid

    yellow, oily layer

  • 27

    Positive result of tertiary amine in reaction with nitrous acid

    clear colorless solution

  • 28

    Principle of primary amines in reaction with nitrous acid

    forms nitrogen gas with an alcohol as product

  • 29

    Principle of secondary amines in reaction with nitrous acid

    produce N-nitrosamine

  • 30

    Principle of tertiary amines in reaction with nitrous acid

    produce water-soluble ammonium salts

  • 31

    Group of organic chemicals usually composed of benzene and its homologues with ana attached (-NO2)

    nitro

  • 32

    Includes itrobenzene, picric acid (trinitrophenol), and TNT (trinitrotoluene)

    nitro

  • 33

    Nitrogen of nitro compounds has a formal _____ charge, which is a strong electrophile

    postive

  • 34

    When the nitro group is attached to an aromatic ring, the positive nitrogen drains the electron density of the ortho and para positions in the benzene ring, which renders these positions unreactive

    true

  • 35

    Nitrobenzene in ferrrous hydroxide test

    reddish brown precipitate

  • 36

    Test to identify nitro compounds

    Ferrous hydroxide test

  • 37

    Uses ferrous ammonium sulfate, sulfuric acid, and alcoholic KOH solution as reagents

    Ferrous hydroxide test

  • 38

    Positive result in ferrous hydroxide test

    reddish brown precipitate

  • 39

    In ferrous hydroxide test, nitro compounds ____ ferous hyroxide forming a reddish brown precipitate of ferric hydroxide, while nitro is _____ to a primary amine

    oxidize-reduce

  • 40

    In most cases, all nitro compounds immediately yield a positive result, while the rate of chemical reaction is _____ on the solubility of the nitro compound

    dependent

  • 41

    Nitrobenzene in Javonsky's test

    light yellow solution

  • 42

    Picric acid in Javonsky's test

    blood red solution

  • 43

    2,4-dinitrobenzene in Javonsky's test

    bluish-purple solution

  • 44

    During the later 19th century, Javonsky discovered that when nitro compounds are treated with _____ in an alkaline environment, these compounds will yield colored complexes due to the formation of Meisenheimer complexes

    acetone

  • 45

    Mono-nitro substituted benzene will give

    light yellow solution

  • 46

    Di-nitro substituted benzene will give

    bluish-purple solution

  • 47

    Tri-nitro substituted benzene will give

    blood red solution

  • 48

    Buiding blocks or macromolecules protein

    peptides, amino acids

  • 49

    Its structure is composed of a carboxyl group, an amino group, and substsituent groups all attached to an a-carbon

    amino acids

  • 50

    Amino acids form _____ through a nucleophilic attack on the carbonyl action of the carboxyl group of one amino acid by the amino group of another amino acid

    polymers

  • 51

    Formation of amide bonds in between two linked acids results to

    peptide

  • 52

    When the link of amino acids is long enough, it produces the macromolecule _____

    protein

  • 53

    1% glycine in nihydrin test

    blue solution

  • 54

    Aniline in nihydrin test

    golden brown solution

  • 55

    General test for the presence of amino acids

    Nihydrin test

  • 56

    A yellow solution which is a very strong oxidizing agent

    nihydrin

  • 57

    Positive result of nihydrin test

    blue to purple solution

  • 58

    Test where nihyrdin reacts with the amino acid producing an intermediate product hydrindantin, which further reacts forming Ruhemann's complex

    nihydrin test

  • 59

    Produces a bright yellow color

    proline

  • 60

    Yields a brown-colored product

    asparagine

  • 61

    Urea in biuret test

    purple or pink solution

  • 62

    1% albumin in biuret test

    purple solution

  • 63

    1% tyrosine in biuret tests

    blue solution

  • 64

    1% glycine in biuret test

    blue solution

  • 65

    General test for peptides

    Biuret tests

  • 66

    Uses cupric sulfate in alkaline solution as reagent

    Biuret test

  • 67

    Biuret test positive result

    purple solution

  • 68

    Compound produced when urea is heated at 180*C

    biuret

  • 69

    When treated with dilute cupric sulfate in alkaline condition, a purple colored product is formed

    Biuret test

  • 70

    This chemical reaction is widely employed to detect the presence of proteins and peptides (especially in medlical diagnostic festing)

    Biuret tests

  • 71

    Color produced in biuret test due to the formation of coodination complex of cupric ions with the unshared electron pairs of peptide nitrogen and the oxygen in water

    purple

  • 72

    Naturally occuring organic compounds containing basic nitrogen atoms

    alkaloids

  • 73

    Very diverse biomolecules, but all are secondary metabolites derived from amino acids or from transamination process

    alkaloids

  • 74

    Commonly have medicinal properties such as local anesthetics, stimulants, and even as an antimalarial

    alkaloids

  • 75

    Have bitter taste, mostly colorless, crystalline in structure

    alkaloids

  • 76

    Can be classified intro bological and ecological activity, chemical strucctures and biosynthetic pathway

    alkaloids

  • 77

    Alkaloids derived from amino acids and share a heterocyclic ring with nitrogen

    true alkaloids

  • 78

    Alkaloid compounds in which the nitrogen dervied from an amino acid is not part of the heterocyclic ring

    protoalkaloids

  • 79

    Alkaloids whose basic carbon skeletons are not derived from amino acids

    pseudoalkaloids

  • 80

    Qualitative chemical tests can be employed to detect the presence of alkaloids though the formation of _____

    precipitates

  • 81

    Most of these reagents consists of dehydrating, oxidizing or a combination of the two agents

    alkaloid precipitants

  • 82

    Potassium bismuth iodide solution using Dragendorff's reagent

    orange precipitate

  • 83

    Potassium mercuric iodide solution using Mayer's reagent

    cream precipitate

  • 84

    Iodine potassium iodide solution using Wagner's solution

    reddish brown precipitate

  • 85

    Mercuric iodide solution using Valser's reagent

    white precipitate

  • 86

    Saturated picric acid solution using Hoger's reagent

    yellow precipitate