Concept explainers
a)
Interpretation:
The configuration of each of the asymmetric centers in the Fisher projection of D-glucose is to be stated.
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 asymmetric carbon atoms are arranged according to their configuration in Fisher projection. The enantiomers of a chiral compound can be named 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) or (S) to (R).
b)
Interpretation:
The configuration of each of the asymmetric centers in the Fisher projection of D-galactose is to be stated.
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 asymmetric carbon atoms are arranged according to their configuration in Fisher projection. The enantiomers of a chiral compound can be named 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) or (S) to (R).
c)
Interpretation:
The configuration of each of the asymmetric centers in the Fisher projection of D-ribose is to be stated.
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 asymmetric carbon atoms are arranged according to their configuration in Fisher projection. The enantiomers of a chiral compound can be named 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) or (S) to (R).
d)
Interpretation:
The configuration of each of the asymmetric centers in the Fisher projection of D-xylose is to be stated.
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 asymmetric carbon atoms are arranged according to their configuration in Fisher projection. The enantiomers of a chiral compound can be named 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) or (S) to (R).
e)
Interpretation:
The configuration of each of the asymmetric centers in the Fisher projection of D-sorbose is to be stated.
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 asymmetric carbon atoms are arranged according to their configuration in Fisher projection. The enantiomers of a chiral compound can be named 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) or (S) to (R).
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Chapter 21 Solutions
EBK ORGANIC CHEMISTRY
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- 2arrow_forwardShow how the following conversions might be accomplished. Show all reagents and all intermediate ructures. More than one step may be required [2 ONLY]: A. B. ° C. OH 0 OH 0arrow_forwardA 20.3 mL sample of 0.263 M triethylamine, (C2H5)3N, is titrated with 0.252 M hydrochloric acid. (1) At the titration midpoint, the pH is . (2) At the equivalence point, the pH is .arrow_forward
- d. 3,4,5-trimethoxybenzoyl chloride . What is the order of decreasing reactivity towards nucleophilic acyl substitution for the arboxylic acid derivatives? (most reactive first) A. B. 0 0 O 0 0 H3C-C-O-C-CH3 H3C-C-N(CH3)2 H3C-C-OCH 3 (CH3)2CH-C-OCH3 I || ။ IV a. I, II, III, IV b. I, III, IV, II C. II, IV, III, I d. II, I, III, IV 0 0 0 0 0 R-C-O C-R R-C-NH2 R-C OR R-C-CI a. I, III, II, IV | 11 III IV b. II, III, I, IV c. III, II, I, IV d. IV, I, III, IIarrow_forwardB. d. a hydrate 4. Give the major organic product(s) for each of the following reactions or sequences of reactions. Show all relevant stereochemistry [4 ONLY]. A. CH₂OH PCC CH2Cl2 0 H KCN HCN 2arrow_forwardPropose a synthesis of the anti-inflammatory drug Ibuprofen from benzene. Show all reagents and all intermediate structures. Assume that ortho and para isomers can be separated. (CH3)2CHCH2 CH3 CHCOOH 1buprofen be requiredarrow_forward
- Assuming that no equilibria other than dissolution are involved, calculate the molar solubility of each of the following from its solubility product: (a) KHC4H4O6arrow_forwardAnswer the following by equation 1. reactio of CH3MgBr with Acetone [CH3COCH3] 2. acetal formation reaction of acetaldehyde [CH3CHO] 3. preparation of ethylmethylether [C2H5OCH3] 4. the acidity of the carboxylic acid depends and affected by the substitutions on the rest of the acid molecule: draw 2 structures of acids to show the different effects on acidity by different subsarrow_forwardConsider the reaction sequence below to answer the following questions: 0 0 0 0 0 1. NaOEt, EtOH H3O* OEt OET 2 PhCH Br heat Ph + EtOH + CO₂ CHh B C A A. The starting material A in this reaction sequence is called a a. ẞ-keto ester b. a-carboethoxy ketone C. malonic ester d. acetoacetic ester B. Conversion of A into B is a type of reaction termed a. an acylation b. an enolation C. d. an alkylation a phenylation f reactionsarrow_forward
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