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Topic: can someone guess what is my unknown product?? (IR included)  (Read 3222 times)

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Offline eunbicho1223

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can someone guess what is my unknown product?? (IR included)
« on: November 17, 2015, 12:58:41 AM »
Hi. I got this unknown chemical (liquid) that I need to figure out. I need to figure out the exact name for this chemical.

I think I have figured out the functional group from its fruity smell (cherry-ish) and IR. It is "ester".
I got the rough estimate of my boiling point : 115~134 C (I'm very bad at measuring bp.. dont trust this number xP)
I got the IR spectroscopy too.

<blockquote class="twitter-tweet" lang="en"><p lang="en" dir="ltr">IR spectroscopy of some unknown ester. What will be my unknown? <a href="https://t.co/cdUH9llCCO">pic.twitter.com/cdUH9llCCO</a></p>&mdash; Eunbi Cho (@EunbiCho1) <a href="https://twitter.com/EunbiCho1/status/666494836459999232">November 17, 2015</a></blockquote> <script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script>


But.. out of so many esters, I cannot figure out which one is the right one.
I'm sort of guessing for "Isobutyl acetate" because of its cherry-like smell. But IR spectrum is slightly off from the japanese IR database.
Can someone figure out what it is based on these observations?

Thank you




Offline TheUnassuming

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Re: can someone guess what is my unknown product?? (IR included)
« Reply #1 on: November 17, 2015, 02:16:16 PM »
No NMR?
If all you can have is the bp. and IR you will need a more exact bp.
When in doubt, avoid the Stille coupling.

Offline jeffmoonchop

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Re: can someone guess what is my unknown product?? (IR included)
« Reply #2 on: November 27, 2015, 05:40:18 AM »
usually to ID something youd do a few different analyses like NRM, Mass spec etc. Do an NMR and itd be easy

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