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Chemistry Forums for Students => Organic Chemistry Forum => Organic Spectroscopy => Topic started by: qw098 on April 15, 2012, 12:46:10 PM

Title: Coniochateone A HNMR confusion
Post by: qw098 on April 15, 2012, 12:46:10 PM

Hi,

I was wondering why the green protons are more downfield than the black protons in Coniochateone A. Compound is shown below.

Thanks!

Title: Re: Coniochateone A HNMR confusion
Post by: OC pro on April 15, 2012, 01:04:18 PM

See the double bond next to the "green" protons. Kind of vinyl-CH2.