(a)
To determine: If the compound is chiral; it’s most symmetric conformation and asymmetric carbon atoms (to be marked by a star) and mirror planes if possible.
Interpretation: The validation of the fact that the given compound is chiral is to be stated; most symmetric conformation of the compound and any mirror plane if possible are to be drawn and asymmetric carbon atoms are to be marked by star.
Concept introduction: An asymmetric carbon atom is represented as a cross in Fisher projection. The carbon chain is kept along the vertical line. The groups attached to asymmetric carbon atoms are arranged according to their configuration in Fisher projection. The enantiomers of a chiral compound can be named with the help of right hand and left hand configuration. In fisher projection, chiral carbon atom is represented by a cross. When two groups on a fisher projection are interchanged, the configuration of chiral carbon also changes from (R) to (S) aur (S) to (R).
(b)
To determine: If the compound is chiral; it’s most symmetric conformation and asymmetric carbon atoms (to be marked by a star) and mirror planes if possible.
Interpretation: The validation of the fact that the given compound is chiral is to be stated; most symmetric conformation of the compound and any mirror plane if possible are to be drawn and asymmetric carbon atoms are to be marked by star.
Concept introduction: An asymmetric carbon atom is represented as a cross in Fisher projection. The carbon chain is kept along the vertical line. The groups attached to asymmetric carbon atoms are arranged according to their configuration in Fisher projection. The enantiomers of a chiral compound can be named with the help of right hand and left hand configuration. In fisher projection, chiral carbon atom is represented by a cross. When two groups on a fisher projection are interchanged, the configuration of chiral carbon also changes from (R) to (S) aur (S) to (R).
(c)
To determine: If the compound is chiral; it’s most symmetric conformation and asymmetric carbon atoms (to be marked by a star) and mirror planes if possible.
Interpretation: The validation of the fact that the given compound is chiral is to be stated; most symmetric conformation of the compound and any mirror plane if possible are to be drawn and asymmetric carbon atoms are to be marked by star.
Concept introduction: An asymmetric carbon atom is represented as a cross in Fisher projection. The carbon chain is kept along the vertical line. The groups attached to asymmetric carbon atoms are arranged according to their configuration in Fisher projection. The enantiomers of a chiral compound can be named with the help of right hand and left hand configuration. In fisher projection, chiral carbon atom is represented by a cross. When two groups on a fisher projection are interchanged, the configuration of chiral carbon also changes from (R) to (S) aur (S) to (R).
(d)
To determine: If the compound is chiral; it’s most symmetric conformation and asymmetric carbon atoms (to be marked by a star) and mirror planes if possible.
Interpretation: The validation of the fact that the given compound is chiral is to be stated; most symmetric conformation of the compound and any mirror plane if possible are to be drawn and asymmetric carbon atoms are to be marked by star.
Concept introduction: An asymmetric carbon atom is represented as a cross in Fisher projection. The carbon chain is kept along the vertical line. The groups attached to asymmetric carbon atoms are arranged according to their configuration in Fisher projection. The enantiomers of a chiral compound can be named with the help of right hand and left hand configuration. In fisher projection, chiral carbon atom is represented by a cross. When two groups on a fisher projection are interchanged, the configuration of chiral carbon also changes from (R) to (S) aur (S) to (R).
(e)
To determine: If the compound is chiral; it’s most symmetric conformation and asymmetric carbon atoms (to be marked by a star) and mirror planes if possible.
Interpretation: The validation of the fact that the given compound is chiral is to be stated; most symmetric conformation of the compound and any mirror plane if possible are to be drawn and asymmetric carbon atoms are to be marked by star.
Concept introduction: An asymmetric carbon atom is represented as a cross in Fisher projection. The carbon chain is kept along the vertical line. The groups attached to asymmetric carbon atoms are arranged according to their configuration in Fisher projection. The enantiomers of a chiral compound can be named with the help of right hand and left hand configuration. In fisher projection, chiral carbon atom is represented by a cross. When two groups on a fisher projection are interchanged, the configuration of chiral carbon also changes from (R) to (S) aur (S) to (R).
(f)
To determine: If the compound is chiral; it’s most symmetric conformation and asymmetric carbon atoms (to be marked by a star) and mirror planes if possible.
Interpretation: The validation of the fact that the given compound is chiral is to be stated; most symmetric conformation of the compound and any mirror plane if possible are to be drawn and asymmetric carbon atoms are to be marked by star.
Concept introduction: An asymmetric carbon atom is represented as a cross in Fisher projection. The carbon chain is kept along the vertical line. The groups attached to asymmetric carbon atoms are arranged according to their configuration in Fisher projection. The enantiomers of a chiral compound can be named with the help of right hand and left hand configuration. In fisher projection, chiral carbon atom is represented by a cross. When two groups on a fisher projection are interchanged, the configuration of chiral carbon also changes from (R) to (S) aur (S) to (R).
(g)
To determine: If the compound is chiral; it’s most symmetric conformation and asymmetric carbon atoms (to be marked by a star) and mirror planes if possible.
Interpretation: The validation of the fact that the given compound is chiral is to be stated; most symmetric conformation of the compound and any mirror plane if possible are to be drawn and asymmetric carbon atoms are to be marked by star.
Concept introduction: An asymmetric carbon atom is represented as a cross in Fisher projection. The carbon chain is kept along the vertical line. The groups attached to asymmetric carbon atoms are arranged according to their configuration in Fisher projection. The enantiomers of a chiral compound can be named with the help of right hand and left hand configuration. In fisher projection, chiral carbon atom is represented by a cross. When two groups on a fisher projection are interchanged, the configuration of chiral carbon also changes from (R) to (S) aur (S) to (R).
(h)
To determine: If the compound is chiral; it’s most symmetric conformation and asymmetric carbon atoms (to be marked by a star) and mirror planes if possible.
Interpretation: The validation of the fact that the given compound is chiral is to be stated; most symmetric conformation of the compound and any mirror plane if possible are to be drawn and asymmetric carbon atoms are to be marked by star.
Concept introduction: An asymmetric carbon atom is represented as a cross in Fisher projection. The carbon chain is kept along the vertical line. The groups attached to asymmetric carbon atoms are arranged according to their configuration in Fisher projection. The enantiomers of a chiral compound can be named with the help of right hand and left hand configuration. In fisher projection, chiral carbon atom is represented by a cross. When two groups on a fisher projection are interchanged, the configuration of chiral carbon also changes from (R) to (S) aur (S) to (R).
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Chapter 5 Solutions
Organic Chemistry, Books a la Carte Edition (9th Edition)
- 3.) For each of the following structures, star any chiral centers and label each chiral center as (R) or (S). b. H CH3 a. с. CH, ço,H HO. H3C Br CH2SH H H NH2 OHarrow_forwardIII. Consider the compound below. CH, CI- Br но O- H. (Atomic number: H-1, C-6, O-8, CI-17, Br-35) a. How many chiral centers are in the molecule? b. How many stereoisomers are there for the compound? c. Draw the Fischer projection for each of the stereoisomer and determine the absolute configuration (R or S). Label each using I, II, etc. d. Which pairs are enantiomers? Which are diastereomers?arrow_forwardIII. Consider the compound below. H. F HO- HO -HO- (Atomic number: H-1, C-6, O-8, F-9) a. How many chiral centers are in the molecule? b. How many stereoisomers are there for the compound? c. Draw the Fischer projection for each of the stereoisomer and determine the absolute configuration (R or S). Label each using I, II, etc. d. Which pairs are enantiomers? Which are diastereomers?arrow_forward
- 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 3arrow_forward1. Consider the following pairs of structures. Designate each chirality center as (R) or (5) and identify the relationship between them by describing them as representing enantiomers, diastereomers, constitutional isomers, or two molecules of the same compound. Use handheld molecular models to check your answers. HG (a) Br and and CH H,G H (b) and CH, Br Br 'F (k) and Br CI Br (e) and CH, CH, CH CH, CH, H- -H- CH and H- -Br (d) and FCH CH, CH, Br H CH, and (m) (e) and H. Br CH, and (m) and Br CH (o) and nd and and andarrow_forwardCH3.. -Br CH;CH2 mirror plane Draw the Fisher projection of the R enantiomer of 2-bromobutane below 3. the R enantiomer of 2-bromobutane. Retain the model you made of the S initials Secure the initials of your TA after showing them your physical model of 4. enantiomer intact on the side. 23 ch are of the mode of the chiral carhe .Is you drew bearrow_forward
- 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:arrow_forward4. Do the following structures represent the same molecules or pairs of enantiomers? Additionally, convert the perspective structures to Fischer projections and vice versa. a. b. C. d. 11 CH HOH₂CH₂C-COH CH₂Br H₂C-CCI CH₂CH3 CH₂Br H-OH CH3 CI HỌC CHỊCH H CH₂CH3 CI HẠCH,C-C 'CH, CH₂Br H₂CH₂C-CH₂CH₂OH OH H HO-CH3 CH₂Br CH3 0-5-6-5 H+CI CH CH₂CH3arrow_forwardAns.arrow_forward
- 2. Mark any chirality centers (asymmetric carbons) with a *. How many stereoisomers are possible? Brarrow_forward2. Assign R, S configurations to each indicated chirality center in the molecules below. OH COOH HO H CH₂NH2 CH H₂N H HO HO-C H CH ye yde OH H H HC CH2 H HO CO₂H 3. Consider the structure below to answer the following questions: H3C H ΝΗ H OH a. Assign R or S configuration to each chirality center in the structure above. b. Based on the number of chirality centers, how many stereoisomers are possible for the structure above? C. Will this structure have a meso stereoisomer? Explain your answer.arrow_forwardQ1: For each of the compounds described by the following names 1. draw a three-dimensional representation. 2. star (*) each chiral center. 3. draw any planes of symmetry. 4. draw any enantiomer. 5. draw any diastereomers. 6. label each structure you have drawn as chiral or achiral. (a) (S)-2-chlorobutane (c) (2R,35)-2,3-dibromohexane (e) meso-hexane-3,4-diol, CH,CH,CH(OH)CH(OH)CH;CH, (b) (R)-1,1,2-trimethylcyclohexane (d) (1R, 2R)-1,2-dibromocyclohexanearrow_forward
Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning