(a)
Interpretation:
The structure and stereochemistry of the expected products for the addition of
Concept introduction:
Stereochemistry is the study of the arrangement of the atoms and molecules in the space and its effects on the reactions.
The addition reactions on the
(b)
Interpretation:
The structure and stereochemistry of the expected products for the reaction of cyclopentene with
Concept introduction:
Stereochemistry is the study of the arrangement of the atoms and molecules in the space and its effects on the reactions.
The addition reactions on the alkenes are very common as there is electron density available on the alkene due to double bond electron-cloud.
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EBK ORGANIC CHEMISTRY STUDY GUIDE AND S
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- Give the structure, exclusive of stereochemistry, of the principal organic product formed on reaction of 2,3-dimethyl-1,3-butadiene with each of the following:(a) 2 mol H2, platinum catalyst(b) 1 mol HCl (product of 1,2-addition)(c) 1 mol HCl (product of 1,4-addition)(d) 1 mol Br2 (product of 1,2-addition)(e) 1 mol Br2 (product of 1,4-addition)(f) 2 mol Br2arrow_forward3-Chloro-2-methylpropene reacts with sodium methoxide in methanol to form 3-methoxy-2-methylpropene. For each of the following changes in the reaction conditions, state whether the reaction rate would increase, decrease, or remain the same. Explain your reasoning. In some cases the identity of the major organic product would be expected to change; in such cases, give the expected major product. (a) dimethyl sulfoxide (DMSO) is used in place of methanol (b) methanol is used by itself without sodium methoxide (c) 1-chloro-2,2,-dimethylpropane is used in place of 3-chloro-2-methylpropenearrow_forwardChlorination of 2-butanone yields two isomeric products, each having the molecular formula C4H7ClO. (a) What are these two compounds? (b) Write structural formulas for the enol intermediates that lead to each of these compounds. (c) Using curved arrows, show the flow of electrons in the reaction of each of the enols with Cl2.arrow_forward
- 3-Chloro-2-methylpropene reacts with sodium methoxide in methanol to form 3-methoxy-2-methylpropene. For each of the following changes in the reaction conditions, state whether the reaction rate would increase, decrease, or remain the same. Explain your reasoning. In some cases the identity of the major organic product would be expected to change; in such cases, give the expected major product. (a) the same quantities of reagents are dissolved in half the volume of methanol (b) 3-bromo-2-methylpropene is used in place of 3-chloro-2-methylpropene (c) sodium methanethiolate (CH3SNa) is used in place of of sodium methoxidearrow_forward5) Compound A reacted with Mg in ether to give B. Compound B is with Ethyl bromide to give Ethyl cyclohexane. What are the structures of A and B?arrow_forwardOn being heated with a solution of sodium ethoxide in ethanol, compound A (C7H15Br) yielded a mixture of two alkenes B and C, each having the molecular formula C7H14. Catalytic hydrogenation of the major isomer B or the minor isomer C gave only 3-ethylpentane. Suggest structures for compounds A, B, and C consistent with these observations.arrow_forward
- Compound D undergoes a reaction with hydrogen bromide, HBr to produce 2-bromobutane. D exists as cis-trans isomers and decolourises bromine solution in methylene chloride, CH2Cl2. (i) Draw and name the structure of compound D. (ii) Draw two (2) constitutional isomers of compound D.arrow_forwardWhich of the following is true for the reactions of alkyl halides? (a) The characteristic reactions of alkyl halides are oxidation and reduction.(b) The characteristic reactions of alkyl halides are elimination and substitutionc. The characteristic reactions of alkyl halides are addition and substitutiond. Characteristic reactions of alkyl halides are addition and elimination.arrow_forwardWrite the structure of the major organic product formed in the reaction of 1-pentene with each of the following: (a) Hydrogen chloride (b) Dilute sulfuric acid (c) Diborane in diglyme, followed by basic hydrogen peroxide (d) Bromine in carbon tetrachloride (e) Bromine in water (f) Peroxyacetic acid (g) Ozone (h) Product of part (g) treated with zinc and water (i) Product of part (g) treated with dimethyl sulfide (CH3)2Sarrow_forward
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