October 23, 2021, 04:22:42 PM
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Topic: DPPA  (Read 892 times)

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Offline Humr

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DPPA
« on: August 05, 2021, 01:05:28 PM »
Hello. I would like to ask, if somebody knows how to determine quality of Diphenylphosphoryl azide. I have old bottle of it and i would like to know if its bad or not. My first idea is LC/MS, but i am not sure if its stable enough. Second idea is some reaction which runs very well with it.

Offline rolnor

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Re: DPPA
« Reply #1 on: August 05, 2021, 01:44:10 PM »
Its normaly a stable reagent, I think NMR would be best, its not stable to protic conditions like MeOH, H2O etc. normaly used as mobile phase for LC-MS.

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