Organic Compound Formation Flashcards
Alkene to alkane
- Alkene + Hydrogen gas
- Nickel catalyst
- 150°C
= Alkane
Or:
- Alkene + Hydrogen gas
- Platinum/ palladium catalyst
- Room temperature
= Alkane
Alkyne to alkane
- Alkyne+ 2 Hydrogen gas molecules
- Nickel catalyst
- 150°C
= Alkane
Or:
- Alkyne + 2 Hydrogen
- Platinum catalyst
- Room temperature
Alkyl halide to alkane
- Alkyl halide
- Zinc-copper couple
- Aqueous alcohol
- Room temperature
= alkane
Or: Wurtz synthesis
- 2 Alkyl halide+ 2 Sodium metal
- Dry ether
- Heat
= Alkane (carbon atoms doubled) + 2 NaX
Or: Grignard reagent
Preparation;
- Alkyl halide + Magnesium metal
- Dry ether
= Grignard reagent (RMgX)
- Grignard reagent + Water
- Aqueous hydrochloric or sulphuric acid
= Alkane + Mg(OH)X
Alkyl halide to alkane (in which the number of carbon atoms has doubled)
Wurtz synthesis
- 2 Alkyl halide + 2 Sodium metal
- Dry ether
- Heat
= Alkane (carbon atoms doubled) + 2 NaX
Preparation of Grignard reagent
- Alkyl halide + Magnesium metal
- Dry ether
= Grignard reagent (RMgX)
What is soda lime?
Mixture of CaO and NaOH/ KOH
Decarboxylation
- Carboxylic acid
- Sodium Hydroxide
- Heat
= Sodium salt of a carboxylic acid - Sodium salt of a carboxylic acid
- Soda lime
- Heat
= Alkane (with one less Carbon atom) + sodium carbonate
Or: Starting with a sodium salt of a carboxylic acid
- Sodium salt of a carboxylic acid
- Soda lime
- Heat
= Alkane (with one less Carbon atom) + sodium carbonate
Or:
- Sodium salt of a carboxylic acid + Sodium hydroxide
- Heat, fused
= Alkane (with one less Carbon atom) + sodium carbonate
Aluminum carbide to methane
- Aluminum carbide + Hot water/ Dilute HCl
= 3 Methane + 4 Aluminum Chloride
Sodium ethanoate (2C) to methane (1C)
- Sodium ethanoate + Sodium hydroxide
- Heat
= Methane + Sodium carbonate
Alkane to alkyl halide
- Alkane + Chlorine/ Bromine gas
- UV light
= Alkyl halide + hydrochloric/ hydrobromic acid
Excess chlorine/ bromine used:
- Alkane + 2 Chlorine/ Bromine gas
- UV light
= Carbon tetrachloride/ tetrabromide + hydrochloric/ hydrobromic acid
Alkane to nitroalkane
- Alkane + Nitric acid
- 400°C
= Nitroalkane + Water
Methane to carbon dioxide
- methane + 2 oxygen
= Carbon dioxide + 2 Water
In insufficient oxygen:
- methane + oxygen
= Carbon dioxide + Water
Alcohol to alkene
- Alcohol
- Concentrated sulphuric acid/ phosphoric acid
- 180°C
= Alkene + Water
Or:
- Alcohol
- Aluminum oxide catalyst
- 350°C
= Alkene + Water
Alkyl halide to alkene
- Alkyl halide
- KOH/ NaOH
- Ethanol
- Heat
= Alkene + hydrochloric/ Hydrobromic
Alkyne to alkene
- Alkyne + Hydrogen gas
- Lindlar’s catalyst / poisoned Palladium and Barium sulphate
=Alkene
Vic dihalide to alkene
- Vic dihalide + Zinc
- Methanol
- Heat
= Alkene + ZnX2
Alkene to vic dihalide
- Alkene + Halogen
- CCl4 (tetrachloromethane)
= Vic dihalide
Alkene to a halogen alcohol
- Alkene
- Halogen, Water
= Halogen alcohol
Alkene to alkyl halide
Markownikoff’s rule of unsymmetrical alkenes
- Unsymmetrical alkene + Hydrogen halide(halogen acid HX)
= Halogen atom is attached to the carbon atom with fewer hydrogen atoms
Or: For symmetrical alkenes
- Alkene + HBr (only works for Br)
- Organic peroxide eg H3COOCH3
= Halogen atom is attached to the carbon atom with more hydrogen atoms
Alkene to alkyl hydrogen sulphate
- Alkene
- Concentrated sulphuric acid
- 0-15°C
= Alkyl hydrogen sulphate
Alkene to alcohol
- Alkene
- H+ / H2O, warm
= Alcohol
Same but in words:
- Alkene
- i) Conc sulphuric acid, ii) Water/warm
= Alcohol
Or: Longer route
- Alkene
- Concentrated sulphuric acid
- 0-15°C
= alkyl hydrogen sulphate
- Alkyl hydrogen sulphate
- Water (H20), warm
= Alcohol
Alkene to diol
- Alkene
- KMnO4(aq)/ -OH or NaOH
= Diol
Alkene to epoxyalkane
- Alkene + 1/2 oxygen gas
- Silver metal catalyst
= epoxyalkane
Epoxyalkane to Diol
- Epoxyalkane + Water
= Diol
Alkene to ozonide
- Alkene + Ozone
- Tetrachloromethane
- < 20°C
= Ozonide
Ozonide to carbonyl compounds (Aldehydes and ketones)
- Ozonide + Water
- Zinc dust
- Ethanoic acid
= 2 carbonyl compounds
(Symmetrical alkene= one type of carbonyl compound
Unsymmetrical = two types of carbonyl compound)
Butane to ethanal
- Butane + Ozone
- Tetrachloromethane
- < 20°C
=ozonide
- Ozonide + Water
- Zinc dust
- Ethanoic acid
= Ethanal
Alkene to polymer
- Alkene
- High temperature
- High pressure
- Catalyst
= Polymer
Dihalogen compound to alkyne
- Dihalogen compound
- Excess KOH \ Ethanol
- Heat
= Alkyne + 2HX
Calcium carbide to ethyne
- Calcium carbide + 2Water
= Calcium hydroxide + Ethyne
Calcium carbonate to ethyne
- Calcium carbonate
- Heat
= Calcium oxide (quick lime) + Carbon dioxide
- Calcium oxide + 3 Carbon atoms
- 2000- 3000°C
=Calcium dicarbide + Carbon dioxide
- Calcium carbide + 2Water
= Calcium hydroxide + Ethyne
Alkyne to tetra halogen
- Alkyne + 2 Chlorine/ Bromine gas
= tetrahalogen compound
Alkyne to gem dihalide
- Alkyne + Hydrogen halide
= Gem dihalide
(According to Markownikoff’s rule)
Ethyne to ethanal
- Ethyne + Water
- Dilute sulphuric acid/ Mercury(ii) sulphate catalyst
- 60°C
= Ethanal (aldehyde)
All other alkynes form ketones from this
Alkyne to ketone
- Alkyne + Water
- Dilute sulphuric acid/ Mercury(ii) sulphate catalyst
- 60°C
= Ketone
(Only if the alkyne is anything but ethyne)
Ethyne to benzene
- 3 Ethyne
- Organo-nickel catalyst / iron catalyst
- 60°C
= Benzene
Benzoic acid to benzene
(Decarboxylation)
- Benzoic acid + Sodium hydroxide
= Sodium benzoate (sodium salt of a carboxylic acid) + Water
- Sodium benzoate
- Sodalime
- Heat
= Benzene + Sodium carbonate
Sodium benzoate to benzene
(Decarboxylation)
- Sodium benzoate
- Sodalime
- Heat
= Benzene + Sodium carbonate
Phenol to benzene
- Phenol + Zinc
- Heat
= Benzene + Zinc Oxide
Benzene diazonium chloride to benzene
- Benzene diazonium chloride
- Water / hydrophosphorous acid
= Benzene
Benzene to nitrobenzene
- Benzene + Nitric acid
- Concentrated sulphuric acid
= Nitrobenzene + Water
Benzene to benzenesulphonic acid
- Benzene + Fuming sulphuric acid
= Benzenesulphonic acid + Water
Benzene to a benzene with halogen attached
- Benzene + Halogen gas
- Halogen carrier catalyst (Iron(iii) chloride, aluminum chloride or bromide of either)
= Benzene with halogen attached + Hydrogen halogen
Benzene to methylbenzene
- Benzene + Alkyl halide (specifically chlormethane)
- Aluminum chloride/ bromide catalyst
= Methylbenzene + Hydrogen halogen
Benzene to alkylated benzene
- Benzene + Alkyl halide
- Aluminum chloride/ bromide catalyst
= Methylbenzene + Hydrogen halogen
Or:
- Benzene + Alkene
- Concentrated sulphuric or phosphoric acid
= Alkylated benzene
Benzene to aromatic ketone
- Benzene + Ketohalogen
- Aluminum chloride
= aromatic ketone + hydrogen halogen
Benzene to cyclohexane
- Benzene + 3 Hydrogen gas
- Nickel catalyst
- 150°C
=Cyclohexane
Benzene to 1,2,3,4,5,6-hexachlorocyclohexane
- Benzene + 3 chlorine gas
- U.V radiation
= 1,2,3,4,5,6-hexachlorocyclohexane
Ethylbenzene to chloroethylbenzene
- Ethylbenzene + chlorine gas
- U.V radiation
= chloroethylbenzene
Bromobenzene to methylbenzene
- Bromobenzene + iodomethane + 2 Sodium metal
- Dry ether
= Methylbenzene + Sodium bromide + sodium iodide
Methylbenzene to methylcyclohexane
- Methylbenzene + 3 Hydrogen gas
- Nickel catalyst
- 150°C
=Methylcyclohexane
Methylbenzene to chloromethylbenzene
- Methylbenzene + Chlorine gas
- U.V
= chloromethylbenzene + hydrogen chloride
Methylbenzene to benzoic acid
- Methylbenzene
- H+/ MnO4- (acidified KMnO4- strong) or H+/ Cr2072-
= Benzoic acid
Or: longer route
- Methylbenzene
- H+ / MnO2 (Manganese(iv) oxide- weak)
= Benzaldehyde
- Benzaldehyde
- H+ / MnO2
= Benzoic acid
Methylbenzene to benzaldehyde
- Methylbenzene
- H+ / MnO2
= Benzaldehyde
Alcohol to alkyl halide (direct)
(Preferred)
- Alcohol + thionyl chloride (SOCl2)
- Pyridine
- Heat
= Alkyl halide + Sulphur dioxide + hydrogen chloride
Or: Reaction with hydrogen halide
- Alcohol + HX
= Alkyl halide + Water
Or:
- Alcohol + phosphorus(III) chloride
- Heat
= Alkyl halide + Phosphorus acid
Or:
- Alcohol + phosphorus(v) chloride
- Heat
= Alkyl halide + hydrogen chloride + phosphoryl chloride
*Or: HCl in the presence of anhydrous zinc chloride *
- Alcohol + HCl
- Anhydrous zinc chloride
= Alkyl halide + Water
Alcohol to alkyl bromide
- Alcohol
- Phosphorus/ Bromine liquid (P/Br2)
= Alkyl bromide
Or: Using potassium bromide and concentrated sulphuric acid
- Alcohol
- KBr / concentrated sulphuric acid
= Alkyl bromide
Alcohol to alkyl iodide
- Alcohol
- P/ I2
= Alkyl iodide
Or: Using hydroiodic acid
- Alcohol
- Potassium iodide/ concentrated phosphoric acid
Silver salt of carboxylic acid to alkyl halide
(Alkyl halide with one carbon less) - Decarboxylation
- Silver salt of carboxylic acid +X2
= Alkyl halide + Carbon dioxide + AgX
X= Cl or Br
Alkyl chloride to alkyl bromide
Or Alkyl chloride to alkyl iodide
- Alkyl chloride + KBr or KI
- Methanol (CH3OH)
= Alkyl bromide / Alkyl iodide respectfully
Alkyl halide to nitrile compound
- Alkyl halide + KCN (potassium cyanide) or NaCN (Sodium cyanide)
- Ethanol
- Heat
= Alkyl nitrile + KBr or NaBr
Alkyl halide to amine
- Alkyl halide + 2 Ammonia
- Heat
= Amine (primary) + Ammonium chloride
Primary amine to secondary amine
- Primary amine + Alkyl halide
= Secondary amine
Secondary amine to tertiary amine
- Secondary amine + Alkyl halide
= Tertiary amine
Tertiary amine to quaternary ammonium salt
- Tertiary amine + Alkyl halide
= Quaternary ammonium salt
Alkyl halide to ether
- Alkyl halide + Sodium alkoxide (RONa)
= Ether + NaX
Or:
- Alkyl halide + Potassium alkoxide (ROK)
= Ether + KX
Alkoxide formation
- Alcohol + K or Na metal
= Alkoxide
Phenoxide formation
- Phenol + KOH or NaOH
= Phenoxide + Water
Carbonyl compund (aldehyde, ketone) to gem dihalide
- Carbonyl compound + PX5
X= Cl or Br
= Gem dihalide (both halogens on same C atom) + POCl
Dihalogen compound to alkyne
- Dihalogen compound
- Excess KOH/ Ethanol
- Heat
= Alkyne + 2HX
Benzene to aryl halide
- Benzene + X2
- Halogen carrier eg FeX3, AlX3
X= Cl or Br - Heat
Benzene diazonium chloride to chlorobenzene
- Benzene diazonium chloride
- Copper(II) chloride /HCl
- Warm
= Chlorobenzene + Nitrogen gas
Benzene diazonium chloride to bromobenzene
- Benzene diazonium bromide
- Copper(II) bromide /HBr
- Warm
= Bromobenzene + Nitrogen gas
Benzene diazonium chloride to fluorobenzene
- Benzene diazonium chloride
- Sodium tetrafluoroborate (NabF4)
- Heat
= Fluorobenzene + Nitrogen gas
Benzene diazonium chloride to Iodobenzene
- Benzene diazonium chloride
- KI
- Warm
= Iodobenzene + Nitrogen gas
Benzeneamime to benzene diazonium chloride
- Benzeneamine
- NaNO2 (sodium nitrite) / dilute HCl
- 0°C
= Benzene diazonium chloride
Phenol to aryl halide
- Phenol + PX5
= Aryl halide + POX3 + HCl