1. structure
1.1. the angle around the O-C=OCH3 is 120, as there are 3 groups electrons around the center carbon
1.2. benzene with functional groups on position 1 and 2
1.3. 2- ethanoylhydroxylbenzoic acid
2. formula
2.1. systematic nomenclature -2-ethanoylhydroxylbenzoic acid
2.2. contains a benzene ring
2.3. benzene with a COOH group on position 1,and a OC=OCH3
2.4. C9H8O4
3. Hom it made
3.1. salicylic acid is found in willow bark
3.2. salicylic acid + ethanoic anhydride acid -> aspirin + ethanoic
3.3. salicylic acid +ethanoyl chloride --> aspirin +hydrogen
3.4. both reactions must take place in a fume cupboard
4. associated chemicals
4.1. salicylic acid
4.1.1. hydroxybenzoic acid
4.1.2. salicylic acid contains a phenol group, so will not react with carboxylic acids to make esters hence why we use ethanoic anhydride orethanoyl chloride to make aspirin
4.1.3. consists of a benzene ring with a carboxylic acid functional group 1, and an alcohol functional group on position 2
4.1.4. found in willow bark
4.2. oil wintergreen
4.2.1. if salicylic acid is reacted with methanol instead of an ethanoic anhydride or ethanoyl chloride then it forms oil of wintergreen which also has painkilling qualities
4.3. ethanoic anhydride
4.3.1. this is the most used chemical to react with salicylic acid to make aspirin
4.3.2. formed when 2 ethanoic acid molecules react to form ethanoic anhydride and water
4.4. ethanoyl chloride
4.4.1. not commonly used to react with salicylic acid to make aspirin as it is a nasty chemical to handle
4.4.2. formed when ethanoic acid and hydrogen chloride react to form ethanoyl chloride and water