I was synthesized octyl formate by weighing 35 g of 85% formic acid and 100 g of octan,1-ol (but I used 55 g of formic acid). I have been refluxing for more than 3 hours, and there is no "fruity" odor of the ester, just the unpleasant odor of octan-1-ol and formic acid. Is the reason that with higher alcohol, esterification is difficult or impossible? I was synthesized many formates, and the pleasant smell of the esters was felt after a few minutes without heating, but octan-1-ol is a problem. Is it lacking a catalyst? I have always produced formates without catalyst (H2SO4), because formic acid is strong, and H2SO4 decomposes it into CO and H2O.
I want to do the same reactions with decan-1-ol later, and also mix acetic acid with these alcohols, and I guess I can't do it ...
Thank you all for your advice and answers.