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oc3 - a.“ ’1 f i".3 ah,4 l t L Chem 118 c SSI 06...

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Unformatted text preview: a.“ , ’1. f i ".3; / ah ! ' ,4 l, t L .. Chem 118 c / SSI / 06 / Sample Test-III lNambiar ‘ D ' 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". 0 H n HNO3/HzSO4 fl Nfl& ._______.—.I 11on ‘ ‘9 H W H H H104 [ "l’ HO ———'—"" 0gi\ 'OH . A 64/ CH3 Q CH0 Brz/ H20 m 6% “+0“ ———-- W \A n/ 3 cugoH O a ' ‘ \N CH co 0 1 ' a] /U V’— ( 3 )2 ( 5911” cm) “m HOCH 0 {N l 2 1/ \If N ., \E// J B} W I OH OH H. Show detailed reaction mechanisms for the following, showing the structure of the expected products. o—-«~;~O 1. t-Boc NH—CH(R1)-COOH + HzN-CH(R2)-COOR t—Boc NH-CH(R1)-CO-HN-CH(R2)-COOR ”at.“ 111. Provide a systematic name or draw the structure as appropriate for the following compounds. (96%- 54‘ / 5 1. Methyl-B—D-ribofuranoside bi- Ni ' _ 2.H2NCH2COOC2H5 E W wayWMa/ZQ— @630 ll 3. oc—D-Fructofuranose 1‘5 ”M0 H w IV. Show how you would carry out the following transformations Showing the reagents you would use in each step and the structure of the intermediate products formed. / 1. RCHOH—Cl-IO .. , RCHOH-CHOH-CHO HO H2NHCOC2H5 2. HOH -. HOH M HZOH HZOH (9 RS V. Circle the compounds that give a positive test for reducing sugats. C6H5COOC5H5 313430-1432 CH30H0 W 1-10 0 OCH! CH ...
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