Concept explainers
(a)
Interpretation: The relationship between and is to be stated.
Concept introduction: The anomers are cyclic monosaccharides, which differ in configuration at one stereogenic centre. These carbon atoms are called anomeric centre.
(b)
Interpretation: The relationship between and is to be stated.
Concept introduction: The anomers are cyclic monosaccharides, which differ in configuration at one stereogenic centre. These carbon atoms are called anomeric centre. The compounds which are neither mirror images nor supperimposable on each other are known as diastereomer.
(c)
Interpretation: The relationship between and is to be stated.
Concept introduction: The compounds which are mirror images as well as non-supperimposable on each other. These compounds are known as enantiomers.
(d)
Interpretation: The relationship between and is to be stated.
Concept introduction: The compounds which have same molecular formula but differ in connectivity of the substituents. These compounds are known as constitutional isomers.
(e)
Interpretation: The relationship between and is to be stated.
Concept introduction: The anomers are cyclic monosaccharides, which differ in configuration at one stereogenic centre. These carbon atoms are called anomeric centre. The compounds which are neither mirror images nor supperimposable on each other are known as diastereomer.
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- Indicate the relationship between each pair. Choose from: configurational stereoisomers,conformers, constitutional isomers, or different formulas (Each term is used at least twice.)arrow_forwardDrawn are four isomeric dimethylcyclopropane. a. How are the compounds in each pair related (enantiomers, diastereomers,constitutional isomers): A and B; A and C; B and C; C and D?b. Label each compound as chiral or achiral.c. Which compounds, alone, would be optically active?d. Which compounds have a plane of symmetry?e. Which of the compounds are meso compounds?f. Would an equal mixture of compounds C and D be optically active? Whatabout an equal mixture of B and C?g. How many stereogenic centers are there for each compound?arrow_forwardConsider the ball-and-stick models A–D. How is each pair of compounds related: (a) A and B; (b) A and C; (c) A and D; (d) C and D? Choose from identical molecules, enantiomers, or diastereomers.arrow_forward
- Ans.arrow_forwardSaquinavir (trade name Invirase) belongs to a class of drugs called protease inhibitors, which are used to treat HIV (human immunodeficiency virus). OH CONH2 O saquinavir Trade name: Invirase NH a. Locate all stereogenic centers in saquinavir, and label each stereogenic center as R or S. b. Draw the enantiomer of saquinavir. c. Draw a diastereomer of saquinavir. d. Draw a constitutional isomer that contains at least one different functional group.arrow_forwardHow are the compounds in each pair related to each other? Are they identical, enantiomers, diastereomers, constitutional isomers, or not isomers of each other? CH3 a. b. C. d. e. f. CH3 HC. HO I CI CH3 CH3 Br H C and and CHO H OH and and and and H CI OHC HC HO CI CBr CH3 OH g. h. j. Br I. HO • k. H and •pt-pt. OH BrCH₂ H H CH3 H HỌ CH3 "Br H and CCH₂OH CH3 and and CH₂Br and CH3 H Br HC Br H. and HO CH3- CH3 CH3 H HOCH₂ H BrCH₂ Br H CH3 CH3 _CH_OH H OH Harrow_forward
- State how each pair of compounds is related. Are they enantiomers, diastereomers, constitutional isomers, or identical?arrow_forwardLocate the stereogenic centers in each compound. A molecule may have one or more stereogenic centers. Gabapentin enacarbil [part (d)] is used to treat seizures and certain types of chronic pain.arrow_forwardDraw all possible stereoisomers for each compound. Label pairs of enantiomers diastereomers.arrow_forward
- Classify each pair of compounds as constitutional isomers or stereoisomers. a. and b. and OH с. and d. andarrow_forward8) Identify enantiomers. C E A CI H ICL F CI H Cle H. CI H. CI H CI CI H. F H. 'F 'F H. F H H. F H H H. A) B and D, A and C B) B and D C) A and B, A and D, B and C, C and D D) B and D, A and B, A and D, B and C, C and D E) A and Carrow_forwardMatch the pairs of compounds with the type of isomerism a. functional isomer b. skeletal isomer c. positional isomer d. cis, trans configuration e. diastereomer f. e,z, configuration g. enantiomerarrow_forward
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