(a)
Interpretation:
Chair conformations of given compound should be drawn and most stable conformer is needed to be predicted between them.
Concept introduction:
Chair conformer: chair conformer is a stable conformer for cyclohexane compound. In this chair conformer two positions are important for substitutions one is equatorial and other one axial position. Axial positions are parallel to the axis of ring while equatorial positions are perpendicular to the axis of the ring.
Example:
After ring flip of the conformer, axial position becomes equatorial and equatorial position becomes axial.
Stereochemistry conversions in chair conformation are shown below.
Substituent position | cis | trans |
1,2 position | (a,e) or (e,a) | (a,a) or (e,e) |
1,3 position | (a,a) or (e,e) | (a,e) or (e,a) |
1,4 position | (a,e) or (e,a) | (a,a) or (e,e) |
(b)
Interpretation:
Chair conformations of given compound should be drawn and most stable conformer is needed to be predicted between them.
Concept introduction:
Chair conformer: chair conformer is a stable conformer for cyclohexane compound. In this chair conformer two positions are important for substitutions one is equatorial and other one axial position. Axial positions are parallel to the axis of ring while equatorial positions are perpendicular to the axis of the ring.
Example:
After ring flip of the conformer, axial position becomes equatorial and equatorial position becomes axial.
Stereochemistry conversions in chair conformation are shown below.
Substituent position | cis | trans |
1,2 position | (a,e) or (e,a) | (a,a) or (e,e) |
1,3 position | (a,a) or (e,e) | (a,e) or (e,a) |
1,4 position | (a,e) or (e,a) | (a,a) or (e,e) |
(c)
Interpretation:
Chair conformations of given compound should be drawn and most stable conformer is needed to be predicted between them.
Concept introduction:
Chair conformer: chair conformer is a stable conformer for cyclohexane compound. In this chair conformer two positions are important for substitutions one is equatorial and other one axial position. Axial positions are parallel to the axis of ring while equatorial positions are perpendicular to the axis of the ring.
Example:
After ring flip of the conformer, axial position becomes equatorial and equatorial position becomes axial.
Stereochemistry conversions in chair conformation are shown below.
Substituent position | cis | trans |
1,2 position | (a,e) or (e,a) | (a,a) or (e,e) |
1,3 position | (a,a) or (e,e) | (a,e) or (e,a) |
1,4 position | (a,e) or (e,a) | (a,a) or (e,e) |
(d)
Interpretation:
Chair conformations of given compound should be drawn and most stable conformer is needed to be predicted between them.
Concept introduction:
Chair conformer: chair conformer is a stable conformer for cyclohexane compound. In this chair conformer two positions are important for substitutions one is equatorial and other one axial position. Axial positions are parallel to the axis of ring while equatorial positions are perpendicular to the axis of the ring.
Example:
After ring flip of the conformer, axial position becomes equatorial and equatorial position becomes axial.
Stereochemistry conversions in chair conformation are shown below.
Substituent position | cis | trans |
1,2 position | (a,e) or (e,a) | (a,a) or (e,e) |
1,3 position | (a,a) or (e,e) | (a,e) or (e,a) |
1,4 position | (a,e) or (e,a) | (a,a) or (e,e) |
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Chapter 4 Solutions
ORGANIC CHEMISTRYPKGDRL+MLCRL MDL
- Provide the structure, circle or draw, of the monomeric unit found in the biological polymeric materials given below. HO OH amylose OH OH 행 3 HO cellulose OH OH OH Ho HOarrow_forwardWhat units (if any) does K have? Does K depend upon how the concentration is expressed (e.g. molarity, ppm, ppb, etc.)? in calculating the response factorarrow_forwardDon't used hand raiting and don't used Ai solutionarrow_forward
- Don't used Ai solution and don't used hand raitingarrow_forwardOA. For the structure shown, rank the bond lengths (labeled a, b and c) from shortest to longest. Place your answer in the box. Only the answer in the box will be graded. (2 points) H -CH3 THe b Нarrow_forwardDon't used hand raitingarrow_forward
- Quizzes - Gen Organic & Biological Che... ☆ myd21.lcc.edu + O G screenshot on mac - Google Search savings hulu youtube google disney+ HBO zlib Homework Hel...s | bartleby cell bio book Yuzu Reader: Chemistry G periodic table - Google Search b Home | bartleby 0:33:26 remaining CHEM 120 Chapter 5_Quiz 3 Page 1: 1 > 2 > 3 > 6 ¦ 5 > 4 > 7 ¦ 1 1 10 8 ¦ 9 a ¦ -- Quiz Information silicon-27 A doctor gives a patient 0.01 mC i of beta radiation. How many beta particles would the patient receive in I minute? (1 Ci = 3.7 x 10 10 d/s) Question 5 (1 point) Saved Listen 2.22 x 107 222 x 108 3.7 x 108 2.22 x 108 none of the above Question 6 (1 point) Listen The recommended dosage of 1-131 for a test is 4.2 μCi per kg of body mass. How many millicuries should be given to a 55 kg patient? (1 mCi = 1000 μСi)? 230 mCiarrow_forwardDon't used hand raiting and don't used Ai solutionarrow_forwardDon't used hand raiting and don't used Ai solutionarrow_forward
- Q3: Arrange each group of compounds from fastest SN2 reaction rate to slowest SN2 reaction rate. CI Cl H3C-Cl CI a) A B C D Br Br b) A B C Br H3C-Br Darrow_forwardQ4: Rank the relative nucleophilicity of halide ions in water solution and DMF solution, respectively. F CI Br | Q5: Determine which of the substrates will and will not react with NaSCH3 in an SN2 reaction to have a reasonable yield of product. NH2 Br Br Br .OH Brarrow_forwardClassify each molecule as optically active or inactive. Determine the configuration at each H соон Chirality center OH 애 He OH H3C Ноос H H COOH A K B.arrow_forward
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