Topic: Unexplained results in the mass spectrometry of a sulfonyl ketone (Read 2552 times)

Babcock_Hall · « **on:** July 20, 2024, 09:33:18 AM »

We synthesized a simple sulfonyl ketone which gave good NMR data. When we ran LC-MS (ESI), we saw a peak at M+20. The paper upon which our synthesis is based used EI. I thought about hydration of the ketone, but that did not seem to explain it. Maybe an adduct of some kind?

rolnor · « **Reply #1 on:** July 20, 2024, 02:51:14 PM »

If both carbon and proton-NMR is OK I would not worry. Is this a new set of compounds? Ketones?

Babcock_Hall · « **Reply #2 on:** July 20, 2024, 03:54:39 PM »

If a reviewer is OK with the result, then I will not worry further.

MOTOBALL · « **Reply #3 on:** August 07, 2024, 04:48:31 PM »

Can you post a photo of the mass spectrum in the molecular ion region?
Say Mol. Wt plus/minus 50 amu.

Regards,
Motoball

Babcock_Hall · « **Reply #4 on:** August 07, 2024, 05:23:29 PM »

The software is a bit unfriendly, and this will take some time, but I will try.

MOTOBALL · « **Reply #5 on:** August 07, 2024, 07:52:42 PM »

Don't spend long on it.

A hand-drawn sketch would be ok, as long as the relative peak intensities are about right.

Motoball

Topic: Unexplained results in the mass spectrometry of a sulfonyl ketone (Read 2552 times)

Babcock_Hall

Unexplained results in the mass spectrometry of a sulfonyl ketone

rolnor

Re: Unexplained results in the mass spectrometry of a sulfonyl ketone

Babcock_Hall

Re: Unexplained results in the mass spectrometry of a sulfonyl ketone

MOTOBALL

Re: Unexplained results in the mass spectrometry of a sulfonyl ketone

Babcock_Hall

Re: Unexplained results in the mass spectrometry of a sulfonyl ketone

MOTOBALL

Re: Unexplained results in the mass spectrometry of a sulfonyl ketone

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