(a)
Interpretation:
Whether the given set of compounds is a constitutional isomer or not has to be indicated.
Concept Introduction:
Constitutional isomers:
Constitutional isomers compounds having same molecular formula but differ in structural formulas. These isomers differ in the connectivity of their atoms in the chain or in the kind of bonds they have (single bond, double bond or triple bond).
(b)
Interpretation:
Whether the given set of compounds is a constitutional isomer or not has to be indicated.
Concept Introduction:
Constitutional isomers:
Constitutional isomers compounds having same molecular formula but differ in structural formulas. These isomers differ in the connectivity of their atoms in the chain or in the kind of bonds they have (single bond, double bond or triple bond).
(c)
Interpretation:
Whether the given set of compounds is a constitutional isomer or not has to be indicated.
Concept Introduction:
Constitutional isomers:
Constitutional isomers compounds having same molecular formula but differ in structural formulas. These isomers differ in the connectivity of their atoms in the chain or in the kind of bonds they have (single bond, double bond or triple bond).
(d)
Interpretation:
Whether the given set of compounds is a constitutional isomer or not has to be indicated.
Concept Introduction:
Constitutional isomers:
Constitutional isomers compounds having same molecular formula but differ in structural formulas. These isomers differ in the connectivity of their atoms in the chain or in the kind of bonds they have (single bond, double bond or triple bond).
(e)
Interpretation:
Whether the given set of compounds is a constitutional isomer or not has to be indicated.
Concept Introduction:
Constitutional isomers:
Constitutional isomers compounds having same molecular formula but differ in structural formulas. These isomers differ in the connectivity of their atoms in the chain or in the kind of bonds they have (single bond, double bond or triple bond).
(f)
Interpretation:
Whether the given set of compounds is a constitutional isomer or not has to be indicated.
Concept Introduction:
Constitutional isomers:
Constitutional isomers compounds having same molecular formula but differ in structural formulas. These isomers differ in the connectivity of their atoms in the chain or in the kind of bonds they have (single bond, double bond or triple bond).
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Chapter 2 Solutions
Organic Chemistry
- The shrub ma huang (Section 5.4A) contains two biologically activestereoisomers—ephedrine and pseudoephedrine—with two stereogeniccenters as shown in the given structure. Ephedrine is one component ofa once-popular combination drug used by body builders to increaseenergy and alertness, whereas pseudoephedrine is a nasaldecongestant.a.) Draw the structure of naturally occurring (−)-ephedrine, which has the1R,2S configuration.b.) Draw the structure of naturally occurring (+)-pseudoephedrine, whichhas the 1S,2S configuration.c.) How are ephedrine and pseudoephedrine related?d.) Draw all other stereoisomers of (−)-ephedrine and (+) pseudoephedrine, and give the R,S designation for all stereogeniccenters.e.) How is each compound drawn in part (d) related to (−)-ephedrine?arrow_forwardBetamethasone is a synthetic anti-inflammatory steroid used as a topical cream for itching. Betamethasone is derived from cortisol, with the following structural additions: a C=C between C1 and C2, a fluorine at C9, and a methyl group at C16. The configuration at C9 is R, and the configuration at C16 is S. Draw the structure of betamethasone.arrow_forwardProvide the IUPAC name of the compound shown below (don’t forget the stereocenters).arrow_forward
- Label compounds B–D as stereoisomers, conformations, or constitutional isomers of A.arrow_forwardAn unknown compound A of molecular formula C10H18O reacts with H2SO4 to form two compounds (B and C)of molecular formula C10H16. B and C both react with H2 in the presence of Pd-C to form decalin. Ozonolysis of B forms D, and ozonolysis of C forms a diketone E of molecular formula C10H16O2. Identify the structures of compounds A, B, C, and E.arrow_forwardRank each set of compounds in order of decreasing λmax:arrow_forward
- Five isomeric alkanes (A–E) having the molecular formula C6H14 are each treated with Cl2 + hv to give alkyl halides having molecular formulaC6H13Cl. A yields five constitutional isomers. B yields four constitutionalisomers. C yields two constitutional isomers. D yields threeconstitutional isomers, two of which possess stereogenic centers. Eyields three constitutional isomers, only one of which possesses astereogenic center. Identify the structures of A–E.arrow_forwardDraw the structure of (S)-citalopram, a drug used to treat depression and anxiety that is much more potent than its R enantiomer.arrow_forwardI cannot figure out the structure for compound B?arrow_forward
- A chiral alkyne A with molecular formula C6H10 is reduced with H2 and Lindlar catalyst to B having the R conguration at its stereogenic center. What are the structures of A and B?arrow_forward5. Draw the structure for compounds B and Carrow_forward) How many asymmetric carbon atoms are there in an aldotetrose? Draw all thealdotetrose stereoisomersarrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning