Can Isoamyl Acetate Create a Bee Army?

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The discussion centers around the synthesis of isoamyl acetate, which is noted for its banana flavor and as a potential bee pheromone. One participant expresses disappointment over missing the experiment due to a power outage, while also sharing insights from an organic chemistry site that claims isoamyl acetate acts as a chemical signal for bees in danger, attracting more bees to the area. The conversation shifts to the practical aspects of the chemical, including its decomposition time and whether it could attract bees if scattered on grass. Another contributor clarifies that isoamyl acetate is a panic pheromone that may agitate bees rather than attract them, noting that it takes about ten to twenty minutes to emit a strong odor on skin, with longer times on other surfaces. The idea of using isoamyl acetate to summon bees humorously fades as the feasibility of creating a "bee army" is questioned.
thunderfvck
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Hi.
My class had done an experiment synthesizing isoamyl acetate, but MY class didn't actually get to do it. haa. You see the other classes in the same section did it but the power went out and we weren't able to do it. Anyways, that's enough fro mr. pointless. SO, as I recall from the outline isoamyl acetate was banana flavour or something. Very disappointing that I wasn't able to do the experiment. ANyway, I also read on the internet (off a particular organic chemistry site) that isoamyl acetate was a honey bee pheromone (at least I think it was a pheromone) that bees give off as a chemical signal when they're in danger. And it attracts more bees to the site, the site didn't mention anything about banana so I'm not sure whether or not I believe that it was this particular chemical. Anyway, maybe somebody could clear that up.
Assuming that this chemical is the bee signal, do you think that I could build some kind of bee army as a result. Not seriously, but you get the implication. Would I be able to summon the bees for my bidding?
 
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yeah it's used to attract bees to a previously stung spot, so if it's on your skin and there are a bunch of bees around, run :wink:.

also the synthesis itself is kind of boring so you didn't really miss much.
 
I remember this lab from my undergraduate days. I thought it smelled pretty good so I didn't wash it off when I spilled some on my hands. But I had forgotten why esters don't get used in the perfume industry. The oil on your skin is acidic enough to hydrolyze the ester back to the Fisher adducts, which in this case is isopentyl alcohol and acetic acid. It was a stinky ride home on the unfortunately crowded bus.
 
How close do the bees have to be?
How long does it take for the ester to decompose? Assuming it isn't on someones skin but is instead, let's say, scattered on the grass or something. Would it attract bees to the spot?
 
Originally posted by thunderfvck
How close do the bees have to be?
How long does it take for the ester to decompose? Assuming it isn't on someones skin but is instead, let's say, scattered on the grass or something. Would it attract bees to the spot?

From what I have read it is a panic pheromone, it wouldn't necessarily attract bees, just agitate them. On the skin it takes ten to twenty minutes to start stinking. Probably considerably longer on the grass. It's the same stuff that gives banana their taste/scent.
 
I see.
So my dreams of a bee army aren't looking very good.
 
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