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(ii) ost For the molecule above: (a) Draw all stereoisomers. Identify a pair of enantiomers AND...
For any two of the molecules below, outline both a retrosynthetic analysis and a forward synthesis...
For any two of the molecules below, outline both a retrosynthetic analysis and a forward synthesis with reagents. Each of your building blocks should not incorporate more than five carbon atoms of the target molecule. (Note: your syntheses do not need to be stereoselective) COH OH [20 marks]
show all work please 8) Draw the possi ble structures, and identify the stereoisomers (enantiomers or...
show all work please
8) Draw the possi ble structures, and identify the stereoisomers (enantiomers or diastereomers) for 3-chloro-2-butanol: CH3H CH C3 6 points)
Enantiomer - R - R Extra Credit: 10 pts. Draw all the stereoisomers of the following convention. Identify all pairs...
Enantiomer - R - R Extra Credit: 10 pts. Draw all the stereoisomers of the following convention. Identify all pairs of enantiomers ng molecule Label all sterecenie carbons using the and diastereomers (Hint: Rings have geometrie some
Consider 3,5-dibromoheptane. On the template below, fill in the atoms (H and Br) needed to draw all possible stereoisomers. Refer to your drawings by the numbers given to answer the following. A) do any of these molecules have a plan of symmetry? If so wh
image.jpgConsider 3,5 -dibromoheptane. On the templates below, fill in the atoms (H and Br) needed to draw all possible stereoisomers.Refer to your drawings by the numbers given to answer the following.a) Do any of these molecules have a plane of symmetry? If so, which ones?b) Are any of these molecules optically active? If so, which ones?c) Are any of these molecules equivalent? If so, which ones?d) Identify a pair of enantiomers.f) Identify a pair of diastereomers.
Solve 12-14 12. Consider the molecule shown below. OH OH f. How many stereoisomers are possible?...
Solve 12-14
12. Consider the molecule shown below. OH OH f. How many stereoisomers are possible? g. Draw each of these stereoisomers. h. Identify pairs of enantiomers and pairs of diastereomers. i. Build a model of the stereoisomer that has both OH groups pointing out. Also, build a model of the mirror image of this molecule. j. Do your two molecules represent enantiomers? Are they chiral? Fischer Projections 13. Build a model of 1-bromo-1-chloroethane. a. Draw a3D representation of this...
H 9. For each molecule: 1) Identify all possible enantiomers and distinguish those that are enantiomers, diastereomers...
H 9. For each molecule: 1) Identify all possible enantiomers and distinguish those that are enantiomers, diastereomers and meso compounds. II) Assign the absolute configuration of chiral carbons in each molecule OCH3 HO+Br HS+CN H2N-CH3 HOSH Он HO+CH3 н OCH3 Сн, ососна Br +D HOCH HC-BrHN+Br CH 8. For the following compounds, assign the absolute configuration for those with chiral carbons and identify those that are NOT enantiomers HO C-C-OHY -CCIN 13CH3 HAN CH3 CH3 осі H-CH3 H2N+CH H O+COOH...
3. Diastereomers and Meso Forms. When a molecule has two or more stereogenic centers, stereoisomers that...
3. Diastereomers and Meso Forms. When a molecule has two or more stereogenic centers, stereoisomers that are not mirror images can exist; these are called diastereoisomers. Within this general class, there are special types of stereoisomers that are always optically inactive and are called meso forms. Construct a model with four different colored balls about a carbon center. Construct another identical to the first and verify this by the superimposition test. Now remove the same colored balls, blue (C from...
4. Build a model of the 1,2-ethanediol molecule. a. Identify the electron-pair and molecular geometry around...
4. Build a model of the 1,2-ethanediol molecule. a. Identify the electron-pair and molecular geometry around each carbon and oxygen atom. b. What are the bond angles for H-C-H? For H-C-C? For C-C-O? For C-O-H? c. Draw two different structures of the molecule in which the –OH groups on the two carbon atoms have different orientations with respect to each other. Which structure is more stable? Explain your reasoning (Hint: What factors contribute to the stability of a structure?). Can...
A. Enantiomers: Certain substances have the unique property of rotating the plane of plane-polarized light. Such...
A. Enantiomers: Certain substances have the unique property of rotating the plane of plane-polarized light. Such light rotation is detectable with the aid of a polarimeter. In order for a molecule to be optically active it must be chiral. Chiral objects lack a plane of symmetry and are non-superimposable on their mirror images. A sp?- hybridized carbon atom can fulfill these requirements if all four of its substituents are different. 1. Methane a) Prepare a methane molecule and then substitute...
3. Cyclic compounds The presence of the ring in all but very large ring cyclic molecules...
3. Cyclic compounds The presence of the ring in all but very large ring cyclic molecules prevents full rotation of the ring atoms. For this reason, stereoisomerism may also occur in cyclic molecules. a) Prepare a model of cyclohexane, C6H12. Draw the condensed formula. b) Build a model of methylcyclohexane (C7H14) by replacing one of the hydrogens of cyclohexane with a methyl group. Draw the skeletal formula for methylcyclohexane. 2 c) How many different isomers exist for methylcyclohexane (CyH34)? d)...
For any two of the molecules below, outline both a retrosynthetic analysis and a forward synthesis with reagents. Each of your building blocks should not incorporate more than five carbon atoms of the target molecule. (Note: your syntheses do not need to be stereoselective) COH OH [20 marks]
show all work please
8) Draw the possi ble structures, and identify the stereoisomers (enantiomers or diastereomers) for 3-chloro-2-butanol: CH3H CH C3 6 points)
Enantiomer - R - R Extra Credit: 10 pts. Draw all the stereoisomers of the following convention. Identify all pairs of enantiomers ng molecule Label all sterecenie carbons using the and diastereomers (Hint: Rings have geometrie some
Solve 12-14
12. Consider the molecule shown below. OH OH f. How many stereoisomers are possible? g. Draw each of these stereoisomers. h. Identify pairs of enantiomers and pairs of diastereomers. i. Build a model of the stereoisomer that has both OH groups pointing out. Also, build a model of the mirror image of this molecule. j. Do your two molecules represent enantiomers? Are they chiral? Fischer Projections 13. Build a model of 1-bromo-1-chloroethane. a. Draw a3D representation of this...
H 9. For each molecule: 1) Identify all possible enantiomers and distinguish those that are enantiomers, diastereomers and meso compounds. II) Assign the absolute configuration of chiral carbons in each molecule OCH3 HO+Br HS+CN H2N-CH3 HOSH Он HO+CH3 н OCH3 Сн, ососна Br +D HOCH HC-BrHN+Br CH 8. For the following compounds, assign the absolute configuration for those with chiral carbons and identify those that are NOT enantiomers HO C-C-OHY -CCIN 13CH3 HAN CH3 CH3 осі H-CH3 H2N+CH H O+COOH...
3. Diastereomers and Meso Forms. When a molecule has two or more stereogenic centers, stereoisomers that are not mirror images can exist; these are called diastereoisomers. Within this general class, there are special types of stereoisomers that are always optically inactive and are called meso forms. Construct a model with four different colored balls about a carbon center. Construct another identical to the first and verify this by the superimposition test. Now remove the same colored balls, blue (C from...
A. Enantiomers: Certain substances have the unique property of rotating the plane of plane-polarized light. Such light rotation is detectable with the aid of a polarimeter. In order for a molecule to be optically active it must be chiral. Chiral objects lack a plane of symmetry and are non-superimposable on their mirror images. A sp?- hybridized carbon atom can fulfill these requirements if all four of its substituents are different. 1. Methane a) Prepare a methane molecule and then substitute...
3. Cyclic compounds The presence of the ring in all but very large ring cyclic molecules prevents full rotation of the ring atoms. For this reason, stereoisomerism may also occur in cyclic molecules. a) Prepare a model of cyclohexane, C6H12. Draw the condensed formula. b) Build a model of methylcyclohexane (C7H14) by replacing one of the hydrogens of cyclohexane with a methyl group. Draw the skeletal formula for methylcyclohexane. 2 c) How many different isomers exist for methylcyclohexane (CyH34)? d)...
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