Organic Derivatives of Water
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can be classified based on the number of alkyl groups attached to the carbon that contains the hydroxyl group
alcohol
react with various oxidizing agents
primary and secondary alcohol
alcohols that are unreactive, but most reactive to nucleophilic substitution in Lucas reagent
tertiary alcohol
quite reactive to nucleophilic substitution
secondary alcohol
unreactive to nucleophilic substitution
primary alcohol
only oxidized only by the strongest oxidative agents
phenol
useful chemical test for determining phenols from alcohols
ferric chloride test
generally unreactive as it has a very stable bond
ethers
organic derivatives of water include
hydroxyl carbonyl carboxyl amine ester ether thiol
materials and reagent needed for test of organic derivatives of water
1-butanol 2-butanol 2-methyl-2-propanol cyclohexanol ethylene glycol Phenol 2-napthtol
Bayer’s reagent
KmnO4
Sodium dichromate
Na2Cr2O7
sulfuric acid
H2SO4
reagents needed
lucas reagent Bayer’s reagent 1.00M Sodium dichromate Sulfuric acid Ferric Chloride Distilled Water 1.00M NaOH Iodine solution sodium metal
equipment needed
Test tube Pasteur pipettes
corrosive substances used
phenol conc. sulfuric acid sodium dichromate NaOH
what to do with corrosive substances
avoid skin contact
its vapor is toxic, so avoid inhalation
diethyl ether
how many drops of the following are placed on separate dry test tube:
➢ 1-butanol ➢ 2-butanol ➢ 2-methyl-2-propanol ➢ Cyclohexanol ➢ Ethylene glycol ➢ Phenol ➢ 2-napthtol
procedures of solubility in water
2 mL of distilled water shake and observe
procedures of acidic properties of alcohols (using sodium metal)
add a small piece of dry sodium metal add 2 mL of each sample, observe the rate of evolution of hydrogen gas
test for solubility in NaOh
5 drops of NaOH shake and observe solubility
Bayer’s oxidation
5 drops of Bayer’s reagent, shake and observe
chromic acid oxidation
add 5 mL of Na2Cr2O7 2 drops of conc. H2SO4, and add 2 drops of sample, observe.