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Topic: question in NMR  (Read 2968 times)

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Offline HB

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question in NMR
« on: September 20, 2013, 01:59:05 PM »
reaction of cyclohexanone with benzaldehyde gives dibenzylidenecyclohexanone which can acquire Z or E configuration, can they be differentiated by NMR
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Offline discodermolide

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Re: question in NMR
« Reply #1 on: September 20, 2013, 02:01:47 PM »
Yes, they should be different.
You need to identify the olefinic protons and measure the coupling constants. The cis coupling id generally less than the trans.
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