December 05, 2021, 09:33:12 AM
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Topic: copper sulfate washes, lutidine, and DCM  (Read 790 times)

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Offline wildfyr

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Re: copper sulfate washes, lutidine, and DCM
« Reply #15 on: October 25, 2021, 10:19:15 PM »
the NMR of hydrolyzed or dimerized TBDMS is pretty characteristic.

Offline Babcock_Hall

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Re: copper sulfate washes, lutidine, and DCM
« Reply #16 on: October 26, 2021, 11:19:25 AM »
The integrals of the tert-butyl methyl groups versus the methyl-Si groups is about 2 to 1, versus 1.5 to 1, ideally.  There are peaks downfield, which indicates that this is not a pure fraction.  But I suspect that one component of this mixture is indeed (TBDMS)2O.

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