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4. If you wanted to make pure (S)-(+)-guaifenesin, what reagent would you need to use in...
please solve them clear & be sure thank you . 1. (21 points) Is the following...
please solve them clear & be sure thank you .
1. (21 points) Is the following compound a meso-compound? If yes, show it in 3D in the box below using wedged and dashed bonds to indicate the substituent bond direction and draw the internal mirror plane of symmetry (if any). (3 points) HOOC-CHOH-CHOH-COOH Draw the 3D structures of the stereoisomers of the compound above. Use wedged and dashed bonds to indicate the substituent bond direction in each stereoisomer. [Hint: if...
(You will need to know what Benedict’s reagent is, the reaction conditions that are used and...
(You will need to know what Benedict’s reagent is, the reaction conditions that are used and how to interpret the experimental results.Please consider the scenario that you are working in an analytical laboratory and need to determine if a sample of synthetic sucrose is 100% pure.) 1. You ran two control experiments using the reagent; one with commercially purchased pure glucose and one with commercially purchase pure fructose. What would you expect the experimental results to show for the glucose...
please show work. will rate. Two Step Reaction -> CooH 1. What reagent(s) would you use...
please show work. will rate.
Two Step Reaction -> CooH 1. What reagent(s) would you use in the first step? 2. Draw the proposed intermediate product 3. What reagent(s) would you use in the second step? 4. Draw the complete mechanism from the starting reactant to the end product
4. Absolute Configuration and R/S Sequence Rules. In 3 you constructed models with two stereocenters that...
4. Absolute Configuration and R/S Sequence Rules. In 3 you constructed models with two stereocenters that represented 4 stereoisomers. 2,3-Dibromobutanoic acid exemplifies such a compound, Make models for the isomers of this compound. a. Draw solid/dashed-wedge structures for the 4 possible stereoisomers and label the enantiomers and diastereomers. b. Specify the sequence priority for the substituents on carbon-2 and carbon-3. Label each structure with the proper R/S notation in the drawings above, for example (2R, 35). d. Draw Newman projections...
Specify the reagent you would use in each step of the following synthesis: step 1 step...
Specify the reagent you would use in each step of the following synthesis: step 1 step 2 CHCH3 Reagents Available a. LiAlH4 b. H2SO4 f. PBrz 9. pyridinium chlorochromate (PCC) h. Nah c. HCI K. CH3CH2MgBr I. CHgMgBr (phenylmagnesium bromide) m. (CH3)2CHMOBI n. Cro3 d. HB i. NaOH e. SOCI j. CH3 MgBr Write the letters of the reagents in the boxes below. Reagent for step 1 Reagent for step 2 A(C4H100) reacts with phosphorus tribromide to give B(C4H,Br). B...
S. Show how you would prepare the following compound using an organometallic reagent. You may use...
S. Show how you would prepare the following compound using an organometallic reagent. You may use any hydrocarbons, organohalides, alcohols and/or carbonyl compounds that have five of fewer carbon atoms You may also use any needed reagents and solvents OH This one as well. He quits grading when you get two mistakes. 6. Propose a synthesis of the following compound using a Wittig reaction. You may use triphenylphosphine (Ph P) and any reagents containing five carbons or less as starting...
Need help with these Orgo Chem problems. mostly with the naming part. thank you Draw the most stable chair conforma...
Need help with these Orgo Chem problems. mostly with the
naming part.
thank you
Draw the most stable chair conformation of cis-1,2-dimethylcyclohexane 1) Draw the ring flip of the structure in question #1 2) Draw all contributing resonance structures for the following molecules. Make sure to show all arrows showing 3) movement of electrons. :c: Name the following molecules 4) 5) Assign R/S configuration to the molecule, 2-bromobutane, shown Br H H H HyC CH3 2-bromobutane Which of the following...
need help with questions 4-5 CH Show your 4. What solvent would you use to make...
need help with questions 4-5
CH Show your 4. What solvent would you use to make this solution → work. 5. Show the conformational analysis for the structure below (2-bromo-3-methylpentane), sighting at C2-C3 bond BU CHE H2C CH3
As part of an investigation on the synthesis of various nitrogen and oxygen containing heterocycles, a...
As part of an investigation on the synthesis of various nitrogen and oxygen containing heterocycles, a series of amino alcohols were treated with aldehydes and ketones. In one of the runs, a colorless liquid product was obtained. A small sample of this liquid product was subjected to combustion analysis. The results indicated that the product contained 55.35% carbon, 10.84% hydrogen, and 21.52% nitrogen. Which structure is consistent with this combustion analysis data? Circle the structure of your choice NO -N...
10. What reagent(s) would you use to conduct the following transformation? (2 points) Br2 Ph a....
10.
What reagent(s) would you use to conduct the following
transformation? (2 points)
Br2 Ph a. E-alkene Br PhCOH CH3 H. ACH3 HEC H b. H₂C E-2 butene 10 What reagent(s) would you use to conduct the following transformation? (2 points) H OH НОН 11. Rank the reactivity of the following toward H2SO4/A catalyzed dehydration, from 1 (fa (slowest). (4 points) OH for OH OH
please solve them clear & be sure thank you .
1. (21 points) Is the following compound a meso-compound? If yes, show it in 3D in the box below using wedged and dashed bonds to indicate the substituent bond direction and draw the internal mirror plane of symmetry (if any). (3 points) HOOC-CHOH-CHOH-COOH Draw the 3D structures of the stereoisomers of the compound above. Use wedged and dashed bonds to indicate the substituent bond direction in each stereoisomer. [Hint: if...
please show work. will rate.
Two Step Reaction -> CooH 1. What reagent(s) would you use in the first step? 2. Draw the proposed intermediate product 3. What reagent(s) would you use in the second step? 4. Draw the complete mechanism from the starting reactant to the end product
4. Absolute Configuration and R/S Sequence Rules. In 3 you constructed models with two stereocenters that represented 4 stereoisomers. 2,3-Dibromobutanoic acid exemplifies such a compound, Make models for the isomers of this compound. a. Draw solid/dashed-wedge structures for the 4 possible stereoisomers and label the enantiomers and diastereomers. b. Specify the sequence priority for the substituents on carbon-2 and carbon-3. Label each structure with the proper R/S notation in the drawings above, for example (2R, 35). d. Draw Newman projections...
Specify the reagent you would use in each step of the following synthesis: step 1 step 2 CHCH3 Reagents Available a. LiAlH4 b. H2SO4 f. PBrz 9. pyridinium chlorochromate (PCC) h. Nah c. HCI K. CH3CH2MgBr I. CHgMgBr (phenylmagnesium bromide) m. (CH3)2CHMOBI n. Cro3 d. HB i. NaOH e. SOCI j. CH3 MgBr Write the letters of the reagents in the boxes below. Reagent for step 1 Reagent for step 2 A(C4H100) reacts with phosphorus tribromide to give B(C4H,Br). B...
S. Show how you would prepare the following compound using an organometallic reagent. You may use any hydrocarbons, organohalides, alcohols and/or carbonyl compounds that have five of fewer carbon atoms You may also use any needed reagents and solvents OH This one as well. He quits grading when you get two mistakes. 6. Propose a synthesis of the following compound using a Wittig reaction. You may use triphenylphosphine (Ph P) and any reagents containing five carbons or less as starting...
Need help with these Orgo Chem problems. mostly with the
naming part.
thank you
Draw the most stable chair conformation of cis-1,2-dimethylcyclohexane 1) Draw the ring flip of the structure in question #1 2) Draw all contributing resonance structures for the following molecules. Make sure to show all arrows showing 3) movement of electrons. :c: Name the following molecules 4) 5) Assign R/S configuration to the molecule, 2-bromobutane, shown Br H H H HyC CH3 2-bromobutane Which of the following...
need help with questions 4-5
CH Show your 4. What solvent would you use to make this solution → work. 5. Show the conformational analysis for the structure below (2-bromo-3-methylpentane), sighting at C2-C3 bond BU CHE H2C CH3
As part of an investigation on the synthesis of various nitrogen and oxygen containing heterocycles, a series of amino alcohols were treated with aldehydes and ketones. In one of the runs, a colorless liquid product was obtained. A small sample of this liquid product was subjected to combustion analysis. The results indicated that the product contained 55.35% carbon, 10.84% hydrogen, and 21.52% nitrogen. Which structure is consistent with this combustion analysis data? Circle the structure of your choice NO -N...
10.
What reagent(s) would you use to conduct the following
transformation? (2 points)
Br2 Ph a. E-alkene Br PhCOH CH3 H. ACH3 HEC H b. H₂C E-2 butene 10 What reagent(s) would you use to conduct the following transformation? (2 points) H OH НОН 11. Rank the reactivity of the following toward H2SO4/A catalyzed dehydration, from 1 (fa (slowest). (4 points) OH for OH OH
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