These problems are very good problems of Organic Stereochemistry. I give the detailed solution below, hope it will help you.
Extra Credit Worksheet NMU ID 1) Label all the chiral molecules with a circle. Label all...
1) Label all the chiral molecules with a circle. Label all meso compounds with a square. (3 ps) OH OH OH CI. BO CI, Br
1.) Name the following compounds including stereochemistry. + Br 2.) Assign configurations to each of the chiral centers and circle the stereochemical relationship of the two compounds shown below in Fischer notation? CH3 C2H5 Br- H CH HCI Brt CzH5 A) enantiomers. B) diastereomers - C) constitutional isomers- D) cis/trans - isomers E) meso - same structure CH3 3.) Draw the structure of the meso form of 1,3-dichlorocyclopentane. Take particular care to indicate three-dimensional stereochemical detail properly. -
Which of the following terms best describes the pair of compounds shown: enantiomers, diastereomers, constitutional isomers, the same compounds, different Compounds, or cis-trans (geometric) isomers? 8. (3 pts) CI MOH OH 9. (3 pts) CHO COOH CHO H H -CH, HYCH.CH CHE H3CH2C- -Η COOH 10. (3 pts) OH HO. CH,OH HO OH HO "CH OH OH
2. For each of the pairs of compounds, indicate if they are identical, enantiomers, diastereomers, constitutional isomers or different compounds. Z-bromopropaneitrite Br CN constitutional isomers H2CH... CN CH3 CH3 COH Hanc HC HEN HS o n diastereomers MMCH₂CH₃ CH3 3. Identify the chiral centers in the diastereomers below and label each as Ror S. CHE
1. Identify all the chiral centers in the y all the chiral centers in the molecule below: 2. For each of the pairs of compounds, de indicate if they are identical, enantiomers, diastereomers, constitutional isomers or different compounds. 3. Identify the chiral centers in the diastereomers below and label each as R or S.
1. For each pair, circle the molecule with the lower pK and provide a brief explanation for your choice. wale wabon ---- 2. For each molecule, draw the two possible chair conformers and circle the preferred conformer. a) cis-1,3-dimethylcyclohexane trans-1,4-dimethylcyclohexane 3. Draw all distinct isomers of dimethylcyclopropane and show the relationship as enantiomer, diastereomer or meso. 4. In each of the following pairs of compounds one is chiral and the other achiral, Circle the chiral compound in each. a) CH,CHCH=CH...
Stereochemistry Questions Name: CHE 201 Date: 1. Describe the relationship between the pairs of compounds as: E- Enantiomers D-Diastereomers [-Identical Structures C-Constitutional Isomers Hs CH.CH -н HO- H но # and - H- H- ci CH,CHE Br -*-* and CH Br H / OH and CH3 HO BrH2C H3C CHE CH2CH3 CICH CH3 H3CKH HOCI CH2CH3 CH3
4. For each pair of molecules, assian the confiquration at each chiral center as R or S Give the relationship between the pair of molecules es no relation, constitutional isomers, same molecule but not meso, some molecule and meso, enantiomers, or diastereomerS There should only be one possible answer. OH OH Constitutiona Soenars b. Br Br c. NH2 NH2 NH2 NH2 d. HO. но. ШЕи ши.
3. Assign R or S configuration to the following molecules: Br F Н. F H- Br CH, Br CHECH, H CH2CH3 CH2CH3 CH, CH, -CHE OH H CH=CH2 H3CH2 HY CH(CH3)2 CH 4. Label each pair of stereoisomers below as A,B,C,D a Enantiomers b. Diastereomers Identical d Meso Compounds
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...