2. i) Circle each stereogenic unit in the Structure provided and write its label directlybelow the unit (alkene → (Z) or (E); chiral center → (R) or (S); substituted cycloalkanering lacking chiral centers → cis or trans).ii) Write C in the 1st box if the structure is Chiral (has an enantiomer) or A if it is Achiral.iii) In the 2nd box write the # of diastereomers of the structure provided.Structure (circle and label)Chiral or achiral# of DiastereomersLABELSHH

Step 1: Step 2: Step 3: Step 4:

Answered: 2. i) Circle each stereogenic unit in…

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter23: Amines

Section: Chapter Questions

Problem 23.22P

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2. i) Circle each stereogenic unit in the Structure provided and write its label directly below the unit (alkene → (Z) or (E); chiral center → (R) or (S); substituted cycloalkane ring lacking chiral centers → cis or trans). ii) Write C in the 1st box if the structure is Chiral (has an enantiomer) or A if it is Achiral. iii) In the 2nd box write the # of diastereomers of the structure provided. Structure (circle and label) OMe Chiral or achiral # of Diastereomers LABELS OH
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 OH
a) Draw the following compound in topological structure (zig-zag) and name the conformation that is drawn: b) Determine if each of the following molecules is an enantiomer, a diastereoisomer, an isomer in constitution or identical to the molecule in (a) and which is drawn in the box. Solve all parts otherwise I will downvote
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Draw a structural formula of the S configuration of the compound shown below. CH₂CI [Referer • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • Include H atoms at chiral centers only. •If a group is achiral, do not use wedged or hashed bonds on it. n ? ChemDoodle
(v) Identify every chiral center in cholesterol (below) with an asterisk. HO (vi) Draw an energy vs. dihedral angle diagram that represents all the conformations of butane starting from the anti-conformation. (vii) Draw both chair conformations for the compound shown below using the templates provided. Circle the chair conformation that is lowest in energy. Br (viii) Draw a chair conformation that meets the following criteria. Axial chlorine at C5 Equatorial methyl at C4 Bromine on C2 that is cis to the chlorine 6 2 5 3 4
Part D. Do the two structures A and B of each pair drawn below represent the same molecule, constitutional isomers, or stereoisomers? If A and B are stereoisomers, further classify them as enantiomers or diastereomers.
2. Identify the type of stereoisomerism in each of the following molecules and draw the stereoisomer pair. (a) CH;CH=CHCOH (b) CgH;CH2CH(NH2)CH3
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10. Provide a structure of an isomer that has the molecular formula C5H8O2 and fits the criteria described below. Note that all of the structures must be neutral and not have any formal charges on any of the atoms. a) Contains an ester and an alkene b) A chiral compound that contains a ring, ether and ketone. c) Contains an alcohol and an alkyne. d) A meso compound that contains two alcohols.
Using a planar pentagon representation for the cyclopentane ring, draw structural formula for trans-1,2-dimethylcyclopentane. • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • Include H atoms at chiral centers only. • In cases where there is more than one answer, just draw one. • Do not include lone pairs in your answer. They will not be considered in the grading. opy aste C. O O O- [* ChemDoodle I...
Draw a structural formula of the SR configuration of the compound shown below. HO CH3 S -NHCH3 R H3C ephedrine • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • Include H atoms at chiral centers only. • If a group is achiral, do not use wedged or hashed bonds on it. * #[ ] در ?

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