Reactions of Alcohols

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  • Created by: Kate
  • Created on: 20-02-14 16:38
Give the reagents that may be used to oxidise a PRIMARY ALCOHOL to an ALDEHYDE
Potassium Dichromate (K2Cr2O7) Sulphuric Acid (H2SO4)
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Give the conditions used in the oxidation of a PRIMARY ALCOHOL to an ALDEHYDE
Mild conditions (gently heat). Distillation.
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Give the reagents that may be used to oxidise a PRIMARY ALCOHOL to a CARBOXYLIC ACID
Excess Potassium Dichromate (K2Cr2O7) Excess Sulphuric Acid (H2SO4)
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Give the conditions used in the oxidation of a PRIMARY ALCOHOL to a CARBOXYLIC ACID
Heat. Reflux.
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Give the reagents that may be used to oxidise an ALDEHYDE to a CARBOXYLIC ACID
Excess Potassium Dichromate (K2Cr2O7) Excess Sulphuric Acid (H2SO4)
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Give the conditions used in the oxidation of an ALDEHYDE to a CARBOXYLIC ACID
Heat. Reflux.
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Give the reagents that may be used to oxidise a SECONDARY ALCOHOL to a KETONE
Potassium Dichromate (K2Cr2O7) Sulphuric Acid (H2SO4)
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Give the conditions used in the oxidation of a SECONDARY ALCOHOL to a KETONE
Heat. Distillation.
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Give the reagent that is used in an elimination reaction of an ALCOHOL to an ALKENE
Concentrated Sulphuric Acid
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Give the conditions used in an elimination reaction of an ALCOHOL to an ALKENE
Heated. Catalyst (eg. Pumice). Reflux at 180 degrees.
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How may you distinguish between an ALDEHYDE and a KETONE using TOLLEN'S REAGENT?
Tollen's reagent is an oxidising agent. Aldehydes are reducing agents - ketones are not. Tollen's reagent will react with aldehydes on boiling. A METALLIC SILVER will form on the surface of the test tube in the presence of an aldehyde.
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How may you distinguish between an ALDEHYDE and a KETONE using FEHLING'S SOLUTIONS?
Fehling's solutions contains CU2+ ions which are oxidising agents. Blue CU2+ ions react with aldehydes(reducing agents) and are reduced to RED Copper(i)Oxide
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Why can't a tertiary alcohol be oxidised?
There are no available H's to remove (C-H bonds to break). Only C-C bonds..
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Card 2

Front

Give the conditions used in the oxidation of a PRIMARY ALCOHOL to an ALDEHYDE

Back

Mild conditions (gently heat). Distillation.

Card 3

Front

Give the reagents that may be used to oxidise a PRIMARY ALCOHOL to a CARBOXYLIC ACID

Back

Preview of the front of card 3

Card 4

Front

Give the conditions used in the oxidation of a PRIMARY ALCOHOL to a CARBOXYLIC ACID

Back

Preview of the front of card 4

Card 5

Front

Give the reagents that may be used to oxidise an ALDEHYDE to a CARBOXYLIC ACID

Back

Preview of the front of card 5
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