2006-11-27 02:40:40 · 3 answers · asked by Un Known 1 in Science & Mathematics ➔ Chemistry
fatty acids and alcohol esters are easy, they just need:
1. Heat
2. Acid catalyst (often PTSA or sulfuric acid)
2. Vacuum
3. Nitrogen sparge
the alcohol group will react with the hydrogen on the fatty acid producing water, if the water is not remove, the bond will be hydrolyzed, which is why the vacuum is required to strip out the formed water.
2006-11-27 03:42:10 · answer #1 · answered by Stonerscientist 2 · 0⤊ 0⤋
Use a carboxylic acid or derivative of a carboxylic acid and react the alcohol (or phenol) with it. Different carboxylic acid derivatives to use are acid chloride or (acyl halide);example ethanoyl chloride CH3COCl + ethanol CH3CH2OH = ethyl ethanoate CH3COOCH2CH3.
Alternatively use acetic anhydride or a carboxylic acid (if you use a carboxylic acid you need a H+ catalyst)
2006-11-27 10:49:27 · answer #2 · answered by Peter B 3 · 0⤊ 0⤋
Put in an acyl chloride or a carboxylic acid (same organic product though reaction is faster with the first one) at a temperature of 180C, with concentrated sulphuric acid catalyst.
2006-11-27 10:50:33 · answer #3 · answered by notscientific 2 · 0⤊ 0⤋