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Functional Group Database


Organic chemistry is dominated by the functional group approach. This page lists the organic FGs held in The Chemical Thesaurus. Click on more info link to access the reactions of the various FGs listed.
Acetal

Acetal, cyclic

Acetylene

Acetylene, terminal hydrogen

Acetylide anion

Acid isothiocyanate

Adamantyl function

Alcohol, benzylic

Aldehyde stabilised carbanion

Aldehyde, a,b-unsaturated

Aldehyde, alpha-bromo

Aldehyde, alpha-hydrogen

Aldehyde, beta-hydroxy

Aldehyde, protonated

Aldimine

Aldimine, N-alkyl

Alkenyl lithium

Alkoxy aluminium hydride ion

Alkoxy borohydride ion

Alkoxy carbenium ion

Alkoxy cation

Alkyl aluminium hydride ion

2° Alkyl carbenium ion

3° Alkyl carbenium ion

Alkyl lithium

Alkyl magnesium bromide

Alkyl nitrile alpha-carbanion

Alkyl oxonium ion

Alkyl thiocyanate

Alkyl, -CH2-

Alkyl, adamantyl

2-Alkyl-1,3-dithiane

Alkyne anion

Alkyne, disubstituted

Alkyne, terminal hydrogen

Allene

Allyl anion

Allyl cation

1° Allylic alcohol

2° Allylic alcohol

Aluminium hydride, alkoxy ion

Aluminium hydride, alkyl ion

Aluminium hydride, dialkyl ion

1° Amide, anion

2° Amide

Amide, cyclic

Amide, cyclic - 4 membered ring

3° Amine, beta-chloro

Amine N-oxide

Arenium ion

Aronium ion

Arsine anion

Arsine, trialkyl

Azide

Azine

Azinic acid

Azinoyl

Aziridine, N,N-dialkyl

Azo compound

Azonic acid

Azono

Azonoyl

Azoxy compound

Benzene anion

Benzoate ester

1,4-Benzoquinone

Benzyl alcohol

Benzyl anion

Benzyl cation

Benzyl ether

Borane, trialkyl (RCH2CH2)3B

Borohydride, monoalkoxy ion

Borohydride, trialkyl ion

alpha-Bromo ketone

alpha-Bromoaldehyde

C6H5COOR

1° Carbanion

2° Carbanion

3° Carbanion

Carbanion, acetylide

Carbanion, alpha-aldehyde

Carbanion, carboxylate stabilised

Carbanion, 1,3-dithiane

Carbanion, enolate

Carbanion, ester stabilised

Carbanion, beta-ketoester

Carbanion, beta-ketone

Carbanion, malonate

Carbanion, methyl ketone enolate

Carbanion, nitrile stabilised

Carbanion, nitro stabilised

Carbanion, phenyl

Carbanion, phosphonate stabilised

Carbanion, vinyl

Carbene, dialkyl

Carbenium ion, alkoxy

Carbenium ion, alkyl dihydroxy

Carbenium ion, beta-amino

Carbenium ion, beta-ether

Carbenium ion, beta-thioether

Carbenium ion, dialkoxy

Carbenium ion, dialkyl

Carbenium ion, dialkyl hydroxy

Carbenium ion, phenyl

Carbenium ion, propargylic

Carbenium ion, trialkyl

Carbodithioic acid

Carbohydrazonic acid

Carbohydroxamic acid

Carboiimide

Carbonate diester

Carbothioic O-acid

Carbothioic S-acid

Carboximidic acid

Carboxylate dianion

Carboxylic acid, protonated

Chloroalkene

beta-Chloroethyl amine

beta-Chloroethyl ether

beta-Chloroethyl thioether

Chlorohydrin

Cyanate

Cyclic ester

Cycloheptatriene anion

Cyclooctatetrene dianion

Cyclopentadienyl anion

Dialkoxycarbenium ion

Dialkyl ketene

protonated Dialkyl ketone

Dialkyl oxonium ion

Dialkyl sulfide

Dialkylaluminium hydride ion

Dialkylamide anion

Dialkylcarbenium ion

Dialkylhydroxy carbenium ion

Dialkylnitranion

Dialkylsulfonium ion

Diazene

Diazene oxide

Diazoketone

Diazonium ion

Dihydronitroyl

Dihydroxynitroyl

Dihydroxyphosphane

beta-Diketone anion

beta-Diketone

Disulfide anion, organic

Disulfide, organic

1,3-Dithiane anion

Dithiane, 2-alkyl, -1,3-

Dithiosulfinic acid

Dithiosulfonic O-acid

Dithiosulfonic S-acid

Enal

Enamine

Enamine anion

Enol ether

Enolate anion

Enolate ion from methyl ketone

Enolate, lithium

Enone

Episulfide, S-alkylated

Epoxide

Epoxide, O-alkylated

Ester stabilised carbanion

Ester, cyclic

Ester, methyl

Ether, beta-chloro

Ether, beta-hydroxy

Ether, phenyl

Ethylene oxide, O-alkylated

Formaldehyde, alkylated

Formate ester, alkylated

Fulminate

Grignard reagent, alkyl magnesium bromide

Hemiacetal

Hemiketal

Hydrazine, alkyl

Hydrazone

Hydrohydroxynitroyl

Hydronitroyl

beta-Hydroxy aldehyde

Hydroxy alkoxy carbenium ion

beta-Hydroxy ether

Hydroxylamine

Hydroxynitroyl

Hydroxyphosphane, alkyl

Hydroxyphosphane, dialkyl

Imide

Imido anion

Imine, dialkyl

Imine, N-alkyl alkyl

Imine, trialkyl

Imino anion

Isocyanate

Isocyanide

Isodiazine

Isoselenocyanate

Isothiocyanate

Isothiocyanate, acid

Ketal

Ketal, cyclic

Ketene, dialkyl

beta-Ketoaldehyde

beta-Ketoester anion

beta-Ketoester

alpha, beta-unsaturated Ketone

Ketone, alpha-bromo

Ketone, protonated

Lactam

beta-Lactam

Lactone

Lithium diorganocopper reagent

Lithium enolate

Lithium, organo

Malonate diester

Malonic diester carbanion

Mercaptan

Methyl ester

Methyl ketone enolate ion

Methyl thioether

Methylene function

Mustard

Mustard, nitrogen

N-Alkyl aldimine

N-Nitro

N-Nitrosomine

Nitranion

Nitrate ester

Nitrene

Nitrilium ion

Nitro compound

Nitroalkane alpha-carbanion

Nitrogen mustard

Nitroryl

Nitroso

Oxenium ion

Oxide, organic

Oxime

Oxirane

Oxirane, O-alkylated

Oxonium ion, dialkyl

Oxonium ion, monoalkyl

Oxonium ion, trialkyl

Peroxide anion, organic

Peroxide, organic

Peroxycarboxylic acid

PhCOOR

Phenol

Phenoxide ion

Phenyl anion

Phenyl ether

Phosphate di-substituted

Phosphate tri-substituted

Phosphate, mono-substituted

Phosphine

Phosphine anion

Phosphine oxide

Phosphine, trisubstituted

Phosphinic acid

Phosphinous acid

Phosphonate stabilised carbanion

Phosphonate, diethyl alkyl

Phosphonic acid

Phosphonium ion

Phosphonous acid

Propanedioic acid diester

Propargyl alcohol

Propargylic cation

[R2N]-

R2S

[R3C]+

[R3C]-

[RCC]-

RCF3

RCOSH

RCSSH

RL

RMgB

RN3

RN=NR

RNC

RNCO

RNCS

RNHNH2

RNO

ROCN

RONC

[RO]+

RSCN

RSeCN

RSeNC

[RSe]-

RSH

RSO2Cl

RSR

RSSR

[RS]+

[RS]-

Secondary amide

Selenide anion

Selenium cation

Selenocyanate

Selenoether

Semicarbazide

Shiff base, dialkyl

Shiff base, N-alkyl alkyl

Shiff base, trialkyl

Silane

Silyl anion

Silyl cation

Sulfenium ion

Sulfide, dialkyl

Sulfinate anion

Sulfinic acid

Sulfinimidic acid

Sulfinohydrazonic acid

Sulfinohydroximic acid

Sulfone

Sulfonic acid

Sulfonimidic acid

Sulfonium ion, alkyl

Sulfonium ion, dialkyl

Sulfonium ion, trialkyl

Sulfonodiimidic acid

Sulfonohydrazonic acid

Sulfonohydroximic acid

Sulfonylchloride

Sulfoxide

Sulphonic acid

Telluride anion

Telluroether

Thiirane, S-alkyl

Thioacetal

Thioacetal carbanion

Thioacetal, cyclic

Thioacid

Thioanion

Thiocarbenium ion

Thiocation

Thiocyanate

Thioether

Thioether, beta-chloro

Thioether, methyl

Thioketal, cyclic

Thioketone

Thioketone, protonated

Thiol

Thiosulfinic O-acid

Thiosulfinic S-acid

Thiosulfonic O-acid

Thiosulfonic S-acid

Thiosulfonimidic O-acid

Thiosulfonimidic S-acid

Trialkylborane (RCH2CH2)3B

Trialkylborohydride ion

Trialkylcarbenium ion

Trialkyloxonium ion

Trialkylsulfonium ion

Trifluoromethyl function

Trithiosulfonic acid

Vinyl anion

Vinyl chloride

Vinyl ether

Wheland Intermediate

Wittig reagent

Ylid

Linear & Aromatic Organic π-Systems
Chemistry and Complexity

© Mark R. Leach 1999-


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