5) There are nine constitutional isomers of molecular formula C7H16. 1) What is the unsaturation number of each of these compounds? 2) Draw five constitutional isomers, where two of these are chiral compounds. 3) For the three achiral constitutional isomers, provide the correct IUPAC names. 4) For the two chiral constitutional isomers, draw in Fischer projection formula the enantiome each. Name, according to IUPAC standards, each of the enantiomers you drew in #4 above.
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- a).Consider the Fischer projections of the following pair of stereoisomers. Name eachstructure in the pair according to IUPAC nomenclature, using appropriate R/S designation to show handedness. b).Draw the missing stereoisomer(s)in this set. Indicate the relationship (enantiomers or diastereomers) between every possible pairing of compounds. Circle a pair of compounds that, if present in equal amounts, will not show optical activity. If one of these compounds has a specific rotation of -7.9owhen isolated, what is the specific rotation of the other?There are nine constitutional isomers of molecular formula C7H16. 1) What is the unsaturation number of each of these compounds? 2) Draw five constitutional isomers, where two of these are chiral compounds. 3) For the three achiral constitutional isomers, provide the correct IUPAC names. 4) For the two chiral constitutional isomers, draw in Fischer projection formula the enantiomers of each. 5) Name, according to IUPAC standards, each of the enantiomers you drew in #4 above.Label the following pairs as A) distereoisomers, B) enantiomers, C) conformers, or D) the same. b1 c1 d1 e1 a2 b2 c2 The structures above are labeled a1, a2, b1, b2 ...etc. Using these labels, indicate which compounds above would have an optical rotation of
- Stereochemistry in biological molecules is often denoted by the D‑ and L‑ convention, instead of the ?‑R‑ and ?‑S‑ configurations determined by the Cahn–Ingold–Prelog methodology. Historically, the glyceraldehyde enantiomer that rotated plane polarized light clockwise was arbitrarily designated as D and the other enantiomer was designated as the L configuration. The D‑glyceraldehyde Fischer projection is shown. D‑glyceraldehydeShown below is Streptomycin, an antibiotic medication used to treat a number of bacterial infections, including tuberculosis, plague, and endocarditis. Neomycin B has broad-spectrum antibacterial activity. Circle and label as many functional groups in these molecules as you can. Label each chiral carbon in Streptomycin. How many total stereoisomers exist for Streptomycin? Label each chiral carbon in Neomycin B. How many total stereoisomers exist for Neomycin B?A(n) ________ is an achiral compound that contains chiral centers but is superimposable on its mirror image. A) constitutional isomers B) conformational isomers C) enantiomers D) diastereomers E) meso compounds
- Because there is usually slow interconversion between the two isomeric forms at room temperature. Because there is usually rapid interconversion between the two isomeric forms at room temperature. Because chirality only exists with the tetrahedral carbon atoms. Because four bonds a are needed to define a stereogenic center.Draw a three-dimensional structure of a chiral compound with the molecular formula of C4H4Cl2 that does not have a stereogenic carbon. In addition, draw the enantiomer of this compound.Drawn are four isomeric dimethylcyclopropanes. 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.How do the boiling points of the compounds in each pair compare: A and B; B and C; C and D? f.Which of the compounds are meso compounds? g.Would an equal mixture of compounds C and D be optically active? What about an equal mixture of B and C?
- Locate the stereogenic centers in attached 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.Locate with an asterisk the stereogenic centers (if any) in the following structure: B. C6H5CH2CH(OH)CO2HConsider the compound below. a) Draw the structure showing stereochemistry, in which carbon 1 has S configuration and carbon 2 has R configuration. b) Draw the structure showing stereochemistry, in which carbons 1 and 2 have S configuration. c) are the two structures from part a and b diastereomers, identical, enantiomers, or unrelated?