sampletest3key - Chem 118C SSI/OS/Nambiar/Sample Test-3 1...

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Unformatted text preview: Chem 118C / SSI/OS/Nambiar /Sample Test-3 1, Draw the structure of the expected organic product (5) formed in the following reactions. Unless mentioned otherwise, you can assume that all reagents are ' present in excess If no reaction occurs, write "No Reaction". E O D HNOa/H2804 fl ”wk ._. L) I]. Show detailed reaction mechanisms for the following, showing the structure of the expected products. 1 . O—N=C-*NO I-Boc NH~CH(R1)-COOH + HzN-CH(R2)-COOR I-Boc NH-aimlycorm-aimg-cook lll. Provide a systematic name or draw the structure as appropriate for the following compounds. 06H- ” / 2) Methyl-B-D-ribofuranoside bL Ii 2.H2NCH2COOC2H5 E W W\WW%Ma/fid we 93/1? t 3 OL-D—Fructofuranose Pr ansformations showing the reagents you lV , Show how you would carry out the following tr ediate products formed. would use in each step and the structure of the interm 1. RCHOH-CHO _, RCHOH-CHOH—CHO I How J V .1 MI WW ArWIJ—GWVHPCN H / + [1:357 HO H2NHCOC2H5 2 EHOH __.__,_ §HOH HZOH H20H I? (filflffik 663‘“) \ék (1.1%} \’ V. Circle the compounds that give a positive test for reducing sugars. ,/"”"‘\\ / H anon. \\ \ H0 03“ / C¢H5COOC5H5 , w -i\\\ K\ CH3CHO ’li CH3-CO 4‘1“?- / OK Iii—.2 ‘i ...
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