5. Draw and name all the possible isomers of dichlorocyclobutane and identify isomers with no optical activity. For any chiral molecule, indicate their absolute stereochemistry.
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- Stereoisomers share the same connectivity and differ only in the way their atoms are arranged in space. Draw the structure of a compound that is a stereoisomer of trans-1,2-dibromocyclobutane.(Note that the question asks for a different stereoisomer of the named compound and not the named compound itself.)Use the wedge/hash bond tools to indicate stereochemistry where it exists.In cases where there is more than one answer, just draw one.Stereoisomers share the same connectivity and differ only in the way their atoms are arranged in space. Draw the structure of a compound that is a stereoisomer of cis-1,2- dibromocyclobutane. (Note that the question asks for a different stereoisomer of the named compound and not the named compound itself.) • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • In cases where there is more than one answer, just draw one.Construct models of all the possible stereoisomers of 1,2-dichlorocyclopropane. Using your models, draw structures for and name the isomers. Label each chirality centre R or S. Indicate which pairs are related as enantiomers and which as diastereoisomers.
- Draw tartaric acid - 2,3-Dihydroxybutanedioic acid (-dioic means two carboxylgroups), how many stereo isomers will this molecule have? How many of these isomers will be chiral?5. For the molecules below assign the stereochemical configuration of the selected tetrahedral carbon chiral centers (R, S or N (not a chiral center)) and the alkene (E, Z or N (not a stereocenter)) that are indicated by the arrows (note that you do not have to assign the configuration of every chiral center in the molecule). If the atom in question is not a chiral center or is not a stereocenter circle N for neither. b) RSN RSN HO" RSN EZ N RSN НО. H₂N HO HO OH HO OH RSN RSN CH3 НИ H3 CH₂ RSN RSN RSN EZ N RSNThe major product of the following reaction exists as two stereoisomers. Draw both isomers: show all hydrogen atoms in the structures. Use wedge and dash bonds to indicate the stereochemistry (you don’t need to draw wedge and dash bonds for C-H bonds of CH3 and CH2 groups). Assign stereo configuration of the asymmetric carbon atoms and write the relationship between two isomers.
- 4. Draw all the stereoisomers of (a) 3-chloro-2-pentanol and (b) 2-bromo-3-hydroxybutane. Give the stereochemistry relationships of stereoisomers (indicate which isomers are enantiomers / diastereomers).The molecule 2,5-dibromohex-3-ene contains three stereogenic sites: a double bond that can be cis- or trans- and two chirality centers that can be either (R) or (S). Draw structures for and name all possible stereoisomers of 2,5-dibromohex-3-ene. HINT: That means a possible total of 2³ stereoisomers, but there's also the potential for high symmetry or meso stereoisomers, which then reduces the total number of possibilities. Put boxes around pairs of enantiomers, and label meso compounds as "meso," as appropriate.assign the stereochemical configuration of the selected tetrahedral carbon chiral centers (R, S or N (not a chiral center)) and the alkene (E, Z or N (not a stereocenter)) that are indicated by the arrows (note that you do not have to assign the configuration of every chiral center in the molecule). If the atom in question is not a chiral center or is not a stereocenter circle N for neither.
- 5. Construct models of all the stereoisomers of 1-bromopropene. Draw the line structure of your models. Are these molecules isomers? If they are isomers to what specific category do they belong? Assign E or Z descriptors to each compound, if appropriate. 6. Construct a model of dibromochloromethane and draw the perspective structure. How many planes of symmetry does this molecule possess? Construct the mirror image of your model. Are the two models superimposable? Classify or describe the relationship between these two mirror images, and assign R or S descriptors, if appropriate.4. - Determine the structural relationship between the compounds in each of the pairs that follow. They may be unrelated, identical (the same compound), constitutional isomers, diastereoisomers, enantiomers? - Identify the optically active (chiral) compounds and any meso compounds. - Assign a configuration (R or S) to all stereocenters. - Name all compounds so that the name reflects the structure unambiguously. a) b) c) d) e) f) H- HO- CHO H3C -NH₂ H- -H H- CH2OH H CH3 CH3 H Ph H CH3 H H CI Ph H H CI CH3 CH₂OH -OH -NH₂ CI H H CI & t OH CHO H3C H OH O-CH3 oma O-CH3 H3C OHDraw a structural formula for 2,3,3-trimethylhexanoic acid. You do not have to consider stereochemistry. In cases where there is more than one answer, just draw one. ... ? ChemDoodleⓇ la