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Chemguide – questions NAMING ORGANIC COMPOUNDS: 2 1. Carboxylic acids and their salts a) Draw the structures of the following compounds: (i) ethanoic acid (ii) potassium ethanoate (iii) 3-chloropropanoic acid (iv) sodium 2,3-dimethylbutanoate b) Name these compounds: O (i) CH3CH2C OH O (ii) CH CHC 3 + CH3 O Na O (iii) CCl3CH2C OH O (iv) HC O Na+ 2. Esters a) Draw the structures of the following compounds: (i) methyl ethanoate (ii) ethyl methanoate (iii) ethyl propanoate (iv) methyl 2-methylpropanoate www.chemguide.co.uk Chemguide – questions b) Name these compounds: O (i) CH3C OCH2CH3 O (ii) HC OCH3 (iii) O CH3C OCH2CH2CH3 O (iv) CH3CH2CH2C OCH2CH3 3. Acyl chlorides a) Draw the structure for propanoyl chloride. O b) Name CH3C Cl 4. Acid anhydrides a) Draw the structure for ethanoic anhydride. O b) Name CH3CH2CH2C O CH3CH2CH2C O 5. Amides a) Draw the structure for ethanamide. O b) Name CH3CH2CH2C NH2 www.chemguide.co.uk Chemguide – questions 6. Nitriles a) Draw the structure for propanenitrile b) Name OH CH3CH2CHCN 7. Amines a) Draw the structures for (i) ethylamine (ii) aminoethane (iii) 2-aminobutane (iv) (Be careful with this one – it's new.) 1,6-diaminohexane (v) diethylamine (vi) triethylamine b) Name these compounds: (i) CH3CH2CH2NH2 (ii) CH3CHCH3 NH2 (iii) CH3 NH CH3 (iv) CH3 N CH3 www.chemguide.co.uk CH3 Chemguide – questions 8. Amino acids a) Draw the structures for (i) 2-aminobutanoic acid (ii) 3-aminopropanoic acid b) Name these compounds. (Important: If you happen to know the biological names for some of the 2-amino acids (such as glycine, alanine and so on), you should not use those in answering these questions.) (i) O CH3CHC NH2 (ii) OH O CH2C NH2 www.chemguide.co.uk OH