Chem460 Problem set-2 - following molecules. Identify all...

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Chem 460, Problem Set #2 Due 12:30pm, 10/31 (Mon) (1) Identify diagnostic fragments in the MS of the following compounds. Download the spectra from http://riodb01.ibase.aist.go.jp/sdbs/cgi-bin/cre_index.cgi?lang=eng OR just google the web with "SDBS". Try to identify as many fragments as you can. Show arrow-pushing mechanisms. (a) (b) Cl O CH 3 O CH 3 H 3 C CH 3 CH 3 O (2) Identify protons with unique chemical shifts by labeling them with a, b, c etc in the
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Unformatted text preview: following molecules. Identify all the enantiotopic protons and diastereotopic protons. (a) (b) O O O Cl (3) Download both 1 H- and 13 C-NMR data from the SDBS database for the compounds shown below. Calculate the expected chemical shift for all the protons and carbons. Do they match to the observed shifts? Make a comparison table. (a) (b) Cl O Cl CH 3 CH 3 CH 3 HO...
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