Interpretation:
The structure of codling moth sex pheromone is to be given with the help of given information.
Concept Introduction:
Electrophiles are electron deficient species which has positive or partially positive charge. Lewis acids are electrophiles which accept electron pair.
Nucleophiles are electron rich species which has negative or partially negative charge. Lewis bases are nucleophiles which donate electron pair.
Free radical is an atom, molecule or ion that has unpaired electrons which makes it highly chemically reactive.
Substitution reaction: A reaction in which one of the hydrogen atoms of a hydrocarbon or a
Elimination reaction: A reaction in which two substituent groups are detached and a double bond is formed is called elimination reaction.
Addition reaction: It is the reaction in which unsaturated bonds are converted to saturated molecules by the addition of molecules.
The reaction in which hydrogen is added to the compound in the presence of catalyst is known as hydrogenation.
The number of moles of hydrogen absorbed will be equal to the number of double bonds.
Reduction is a process in which hydrogen atoms are added to a compound. Usual reagents used in the reduction process are
The reaction in which the
Reduction is a process in which the addition of hydrogen atoms to a compound takes place.
During an addition reaction unsaturated bonds are converted into saturated molecules by the addition of molecules
Ozonolysis is a process in which the given alkene is cleaved with ozone
The
First, give priority according to Cahn-Ingold-Prelog convention rules:
The higher the
If priority cannot be assigned according to atomic mass, then assign the priority according to the first point of difference.
If both the priority groups are on the same side of a double-bonded carbon atom, then it is known as
But if both the priority groups are diagonal to each other, then it is
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Chapter 8 Solutions
Organic Chemistry
- A chemist synthesized compound X as a racemic mixture. When the ketone group in X was enzymatically reduced to the corresponding alcohol, a 100% yield was obtained of the product shown below. Choose the statement that best describes this result. ОН enzyme C;H1 `OCH,CH; pH 4.0 C3H1 `OCH,CH3 ОН ÕH X (racemic) (100% yield) One enantiomer of compound X reacts quickly with the enzyme. The other enantiomer of compound X is unreactive, but rapidly equilibrates with the reactive enantiomer under the reaction conditions. Since compound X was racemic, it makes sense that only a single product was obtained. O The product is a meso compound, so either enantiomer of compound X gives the same product. One enantiomer of compound X reacts quickly with the enzyme, while the other enantiomer of compound X remains unchanged.arrow_forwardAn aromatic compound K, whose molecular formula is C8H11N, is examined in the laboratory to elucidate its structure. The following observations were made: A) Compound K is soluble in dilute hydrochloric acid but insoluble in sodium hydroxide solution. B) Treatment of compound K with excess potassium hydroxide and benzenesulfonyl chloride, C(6)H(5)SO(2)Cl, results in the formation of a heterogeneous mixture. The NMR spectrum of compound K is shown below. C) Compound K when treated with acetic anhydride[CH3-C(O)-O-C(O)-CH3], gives compound L, whose molecular formula is C(10)H(13)ON. Compound L is insoluble in dilute acid or dilute base at room temperature, heating compound L in dilute acid or base, however, regenerates compound K. D) When compound L is heated with a mixture of concentrated nitric acid and sulfuric acid, a single product, compound M, with the molecular formula C(10)H(12)O(3)N(2) is formed in excellent yields. On the basis of these observations draw the structures of…arrow_forwardGive reasons for the following :(i) Phenol is more acidic than methanol.(ii) The C—O—H bond angle in alcohols is slightly less than the tetrahedral angle (190°28′).(iii) (CH3)3C—O—CH3 on reaction with HI gives (CH3)3C—I and CH3—OH as the main products and not (CH3)3C—OH and CH3—I.arrow_forward
- Draw the structural formula for the major product of the following reactions.arrow_forwardGive reasons for the following :(i) Ethyl iodide undergoes SN2 reaction faster than ethyl bromide.(ii) (±) 2-Butanol is optically inactive.(iii) C—X bond length in halobenzene is smaller than C—X bond length in CH3—X.arrow_forwardPredict the major organic product of each of the following reactions.arrow_forward
- Ketones and aldehydes react with sodium acetylide (the sodium salt of acetylene) to give alcohols, as shown in the following example: R1 ОН 1. НС—с: Na* R2 R1 R2 2. Нзо" HC Draw the structure of the major reaction product when the following compound reacts with sodium acetylide, assuming that the reaction takes preferentially from the Si face of the carbonyl group. • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • You do not have to explicitly draw H atoms. • If a group is achiral, do not use wedged or hashed bonds on it. CH3 CHarrow_forwardA key step in the synthesis of the narcotic analgesic meperidine (trade name Demerol) is the conversion of phenylacetonitrile to X. (a) What is the structure of X? (b) What reactions convert X to meperidine?arrow_forward2,4-D is a synthetic auxin (a plant hormone) used in the control of broadleaf weeds, and one of the most widely used herbicides in the world. It is produced commercially by the following reaction: chloroacetic acid + dichlorophenol → hydrochloric acid + 2,4-D C2H3ClO2 + C6H4Cl2O → HCl + C8H6Cl2O3 How much chloroacetic acid does it take to manufacture 5.18 grams of 2,4-D?arrow_forward
- Nitroxoline is the generic name by which 5-nitro-8-hydroxyquinoline is sold as an antibacterial drug. Write its structural formula.arrow_forwardProvide reagentsarrow_forwardProstaglandins are a class of eicosanoids, fatty acid derivatives involved in a variety of important phenomena, including fever, inflammation, and pain. The first step in prostaglandin synthesis involves the conversion of the 20-carbon fatty acid arachidonic acid to PGG2 by the enzyme prostaglandin endoperoxide synthase, or cyclooxy: Ibuprofen is one of several inhibitors of cyclooxogenase used therapeutically. Arachidonic acid 20₂ 0.5 1.0 1.5 2.5 3.5 cyclooxrygenase PGG₂ JOH محمد The following kinetic data were obtained for the enzyme cyclooxygenase in the absence of any inhibitor (1), and in the presence of ibuprofen (2) at a concentration of 48 [arachidonic acid] (uM) (1) v(uM/min) (2) v(uM/min) 23.5 32.2 36.9 41.8 44.0 16.67 25.25 30.49 37.04 38.91 Ibuprofen A. Plot the data in standard Michaelis-Menten form as well as in double-reciprocal form. B. Determine Vmax and Km for the enzyme. C. Based on this limited data set, what type of inhibition does ibuprofen likely exhibit?…arrow_forward
Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning
Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning