Quiz 4 with Solution - Organic Chemistry II | CHEM 3020, Quizzes of Organic Chemistry

Download Quiz 4 with Solution - Organic Chemistry II | CHEM 3020 and more Quizzes Organic Chemistry in PDF only on Docsity!

2g pts Name Ke } 3 ie gird) CHEM 3020, Quiz 4 (Ch 27, 28), April 24, 2012 1. Draw the structure of the dipeptide lys-ala-met ALL S configuration (3 pts) Ilys (R = -(CH2);NHp, met (R= CHCH2SCH:) wos 2 A engasit ap, \ oli os 7 AY ~ c a wae} =e oY : \ « ( (ys ~ eve tb Ne. Y pheé 2, Convert the aldehyde form of the aldohexose below to its a-D pyranose form (draw the Haworth structure). (3 pts) CHO CRON HO—7—-H HO—-—H ———————_> H—— OH H—7—OH CH,OH 3. Circle the reducing sugar (3 pts) Hic OCHs AcQ OAc Lo H H H OCH; H H ‘OCI; OCH H OAc 4. Single Step Synthesis. Write the organic product, or intermediate as indicated (19 pts). a. Fill in the products of the Strecker synthesis of valine. H,0*, A Coor Nee b. HOH ow tLo CH,OH, Ht KO C 0 HO 1 OH, i nae oMe on OH Ko ys oH ot