EphedrineHNHCH3Assign R or S configuration to each chiral center indicated via a (*).HOb HcCH3List the groups according to decreasing priority as a string of non capitalized letters like abcd. Highest priority 1st.Decreasing priority is :Configuration: (Submit AnswerTry Another Version4 item attempts remaining

Absolute configuration can be determined by assigning the priority to the groups attached to Chiral…

Answered: Ephedrine Assign R or S configuration…

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter12: Chirality

Section: Chapter Questions

Problem 20E

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[Review Topics] RE Classify the following compounds as chiral, achiral (but not meso), or meso. OH H1 H 1st structure: CH3 2nd structure: CI 3rd structure: Submit Answer tesy intre oiT உறவு: 9101p attempls Femaining
E). Provide the absolute configuration of each chiral center (R, S or none). i) Lowest CIP priority group back des D NH₂ D
E). Provide the absolute configuration of each chiral center (R, S or none). i) Lowest CIP priority group back OMe Et Me
Construct models of 1,2-dibromocyclopentaneand draw all the possible stereoisomers. Label each chirality centre with an*,andan Ror S. Indicate clearly which pairs are relatedasenantiomers and which as diastereoisomersor meso.
E). Provide the absolute configuration of each chiral center (R, S or none). i) Lowest CIP priority group back ii) Lowest CIP priority group front F SHE Dod Et NH₂
[Review Topics] Specify the configurations (R or S) of chiral centers a and b in the chem3D structure below. NH₂ Carbon a: R Carbon b: R NH Submit Answer CO₂H b CH₂SH An error has been detected in your answer. Check for typos miscalculations etc before submitting your answer Retry Entire Group ball & stick labels 9 more group attempts remaining i [Refrances 4
3. Indicate all chirality centers and label as R or S. CI, F Н Но
2. Identify the relationship between each pair of structures. Always be as specific as possible. Your choices are: constitutional isomers, enantiomers, diastereomers (not epimers), epimers, anomers, identical, or not isomers. a) b) :O FO c) OH OH Но- -OH Но OH но- OH Но Но- -OH -O- OH OH -OH -OH -O- LOH -OH OH -OH -O- OH D-xylose D-arabinose D-xylose D-lyxose D-ribulose D-ribose f) d) OH OH OH FOH HO HO Но— OH Но- HO —ОН OH Но- OH OH Но OH OH OH НО HO OH g) h) OH -OH HOCH2 HOCH, OH H H o OH H -Он НО OH H он H OH -OH Но ÓH но H -OH OH ÓH D-ribose D-gulose i) j) CH,OH Он но OH OH но- CH,OH он OH -он но- OH но- -OH но OH H H. OH H.
9.a. Circle all the appropriate terms. t-Bu The two molecules drawn above are enantiomers optically active enantiomers superimposable 9.b. Circle all the appropriate terms. diastereomers not optically active H optically active Bull.... H₂CH... Br -CH3 The two molecules drawn above are Me H diastereomers not optically active superimposable Me chiral meso not superimposable H3C- H ....... chiral meso H ...III\CH3 Br not superimposable Cl achiral -t-Bu identical achiral identical 3
5. Consider the following pairs of structures. Identify the relationship between them (enantiomers, diastereomers, or identical compounds. H3C OH H₂C HOITY H CH₂OH HO HO C,, CO₂H вой HOH2C CH₂ OH H OH H OH Н HO H H COzH Br Д H3C Br H₂CH₂C CI H CHO CH3 I CH3 OH HO Н HO... HO C OHC Н H3C, Bell!! H CO₂H Н.С CH₂OH H OH H OH HO H CH₂ CO₂H HỌ,H CH₂CH3 CH3 CI CH₂OH Br
(Please correct answer and don't use hend raiting) Can you please list all the chiral centres within each compound. :) OA. OC. OE. B. OD.
NHCH3 Assign R or S configuration to each chiral center indicated via a (*). HO bH d. CH3 pseudoephedrine List the groups according to decreasing priority as a string of non capitalized letters like abcd. Highest priority 1st. Decreasing priority is : Configuration:

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