1 23 1 23salicylic acidbenzyl benzoate cinnamic acid 34 34 1 15 1 18methyl salicylatebenzyl benzoate hhpa 34 34 1 15 1 17salicylic acidbutyl benzoate 1 6 5 sup 1 23 1 20butyl benzoate cinnamic acid 1 2 sup 2 3 5 sup 2 1 13 1 16butyl benzoate hhpa 34 34 1 17 1 19butyl benzoate cinnamic 1 3 sup 3 2 5 sup 3 1 22 1 13acid hhpabutyl benzoate cinnamic acid 34 34 1 17 1 15methyl hexahydrophthalicanhydrideo hydroxy methyl benzoate 1 6 5 sup 1 26 1 24 methyl salicylate methyl salicylate cinnamic acid 1 2 sup 2 3 5 sup 2 1 18 1 15methyl salicylate 34 34 1 16 1 13phthalic anhydridemethyl salicylate hhpa 34 34 1 23 1 17methyl salicylate methyl 34 34 1 16 1 20hexahydrophthalic anhydridemethyl salicylate benzoic 1 3 sup 3 2 5 sup 3 1 15 1 18acid hhpamethyl salicylate cinnamic acid 34 34 1 18 1 20phthalic anhydridemethyl salicylate cinnamic 34 34 1 24 1 17acid hhpamethyl salicylate cinnamic acid 34 34 1 21 1 19methyl hexahydrophthalicanhydride______________________________________ table 3__________________________________________________________________________data from runs made in rectification column__________________________________________________________________________ time stillpot temp u00b0 c overhead temp wt 2 butanol relativeagent min at start sampling when sampling overhead bottoms volatility__________________________________________________________________________none 60 99 99 97 59 5 45 1 12methyl benzoate benzoic acid 60 98 117 97 65 44 1 20methyl benzoate benzoic acid 90 98 125 97 5 67 44 5 1 23methyl benzoate benzoic acid 120 98 132 97 5 68 5 45 1 24 average 1 23methyl salicylate 60 99 116 97 65 43 1 22methyl salicylate 90.