Which is optically active? © GMU 2020541 O The following compound: HO OH O The following compound: HO. HO. 11. The following compound: HO O The following compound: ОН Но OH The following compound: HO OH
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A: The percentage for one enantiomer = 86% The percentage for second enantiomers = 14%
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- 5) Use compounds X, Y and Z (shown below) to answer the following questions. H. H3C" "CH3 ОН CH3 compound X compound Y compound Z a) Is compound X classified as cis, trans or neither? b) Is compound Y classified as E, Z or neither? c) Is compound Z classified as R, S or neither? d) Are compounds X and Y constitutional isomers of each other? (YES or NO) e) Are compounds Y and Z constitutional isomers of each other? (YES or NO) f) Classify compound Y as a primary, secondary or tertiary alcohol. g) Which compound(s) is(are) chiral? h) Give the IUPAC name for compound Z, omitting the absolute configuration (R or S) designation. i) In the indicated spaces below, draw stereoisomers of compounds X, Y and Z. stereoisomer of compound X stereoisomer of compound Y stereoisomer of compound ZAs mentioned in Problem 3-53, the statin drugs, such as simvastatin (Zocor), pravastatin (Pravachol), and atorvastatin (Lipitor) are the most widely prescribed drugs in the world. (a) Are the two indicated bonds on simvastatin cis or trans? (b) What are the cis/trans relationships among the three indicated bonds on pravastatin? (c) Why cant the three indicated bonds on atorvastatin be identified as cis or trans?* Furan can be oxidized in the presence of peroxide to sialdehyde O true O false Hybridization of nitrogen with pyrrole is sp3 . * true False benzo[b]pyrrol is known as quinoline * true False
- ОН ОН В For the following molecule B Give the number of stereoisomerism elements :Consider the cyclization reaction mechanism that is partially detailed below and predict the structures of key intermediates. Only draw resonance structures with carbanions and not oxyanions. CH,000 [1] NaOCH, (2] H20 O. COOCH, O. Na* :QCH, нн H H- CH;ö. :0: :0: + CH3OH draw structure ... draw structure... H20 :O:Consider the following compounds OH OH D A NH2 H E F The most basic compound is Choose... + The compound(s) that is (are) 2º alcohol Choose... + The compound(s) that is (are) considered as hydrocarbon Choose... The compound that has the strongest hydrogen-bonding is Choose...
- 2. Consider the following organic molecules A-H. Many of them are natural products isolated from Nature. Please answer the following questions by writing the Letter pertaining to each molecule next to the question. -N- H;C "CO,H N. Но CH2 ČH3 B strychnine (a plant alkaloid) hirsutic acid A nepetalactone (essence of cutnip) (a fimgul metabolito) H- H. I CH,0 E helminthosporal (a imgal toxu) D progesterone F cantharidin (a progestin hommone) (am insect vesicant) Br NO2 Br CI G untenine C (E)-1,6-dibromo-2,7-dichloro-3,7-dimethyloct-3-ene (fom red algae) (4 sponge metabolite)Prectice q#7 Draw the "hexagon" line structure of the following (be sure to indicate stereochemistry). -Br OHo. Opioids are compounds derived from opium, which comes from the opium poppy. Although in reality, all poppies produce opoids, the drug “morphine" , codeine as well as other opioid pain killers are typically derived from opium. A quick way to find or identify these compounds is to look for a six-membered ring containing a nitrogen. Often, if you see a six-membered ring with a nitrogen, you have some sort of an opoid or a modified synthetic pain killer. With that said, morphine and codeine are typically not injected or given orally in pure form. Instead, their salts are used, such as morphine sulfate or codeine phosphate. Why are the salts used or administered instead of the pure substances (or non-salt forms)? (I am not interested in drug names, but to have you answer the why of this question.) BIU E E E E 3回fe 27 В. acen W 1 F T F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 () NumLk Prt Sc Pause Br
- Which of the following is the MAJOR product of the following reaction? ... EIONA, E1OH Br heat ... ... ...f. g. OCH 3 CO₂H OCH 3 pyruvic acid 1. SOCI22 2.? NaBH4 CH3OH methicillin (narrow-spectrum, B-lactam antibiotic)? H₂SO4 (cat) C6H8O4 (show structure)Compound A has molecular formula C6H12. Upon treatment with NBS and irradiation with UV light, exactly two constitutional isomers are formed. Which of the following is a possible structure for compound A? OI Oll O III OI and II I and III || |||
