Organic Chemistry - Standalone book
10th Edition
ISBN: 9780073511214
Author: Francis A Carey Dr., Robert M. Giuliano
Publisher: McGraw-Hill Education
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Chapter 11.9, Problem 14P
What dienes containing isolated double bonds are capable of being formed, but are not observed, in the two preceding equations describing elimination in
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Differentiate an internal alkyne from terminal alkyne in terms with its reactivity with test reagents.
Arrange the relative stability of the intermediates involved in the addition addition of hydrogen halide to alkene.
Alkyl halides undergo elimination reactions to produce alkenes by the reacting with strong bases as shown in the following reaction (see image).
In general, compounds where the halogen is axial (axial position) are much more reactive than those in which they are in the equatorial position. Taking the above into account:
a. Which of the following compounds would give a faster elimination reaction: cis-1-bromo-2-tert-butylcyclohexane or trans-1-bromo-2-tert-butylcyclohexane? Draw the corresponding structures and clearly explain the choice.
Chapter 11 Solutions
Organic Chemistry - Standalone book
Ch. 11.1 - Prob. 1PCh. 11.1 - Prob. 2PCh. 11.2 - The two compounds shown differ by a factor of 60...Ch. 11.2 - Prob. 4PCh. 11.2 - Prob. 5PCh. 11.2 - Prob. 6PCh. 11.3 - Prob. 7PCh. 11.3 - Prob. 8PCh. 11.3 - Evaluate 2,3,3-trimethyl-1-butene as a candidate...Ch. 11.4 - After heating a solution of allyl tert-butyl...
Ch. 11.5 - Prob. 11PCh. 11.6 - Prob. 12PCh. 11.8 - Prob. 13PCh. 11.9 - What dienes containing isolated double bonds are...Ch. 11.10 - Prob. 15PCh. 11.10 - Prob. 16PCh. 11.11 - Prob. 17PCh. 11.12 - Dicarbonyl compounds such as quinones are reactive...Ch. 11.12 - 2,3-Di-tert-butyl-1,3-butadiene is extremely...Ch. 11.12 - Methyl acrylate (H2C=CHCO2CH3) reacts with...Ch. 11.13 - Prob. 21PCh. 11.14 - What diene and dienophile could you use to prepare...Ch. 11.14 - Write equations in the synthetic direction for the...Ch. 11.16 - Prob. 24PCh. 11.16 - Prob. 25PCh. 11 - Write structural formulas for each of the...Ch. 11 - Give an acceptable IUPAC name for each of the...Ch. 11 - A certain species of grasshopper secretes an...Ch. 11 - Which of the following are chiral?...Ch. 11 - Describe the molecular geometry expected for...Ch. 11 - Prob. 31PCh. 11 - What compound of molecular formula C6H10 gives...Ch. 11 - Prob. 33PCh. 11 - Prob. 34PCh. 11 - Prob. 35PCh. 11 - Prob. 36PCh. 11 - Identify the more reactive dienophile in each of...Ch. 11 - Prob. 38PCh. 11 - Prob. 39PCh. 11 - Prob. 40PCh. 11 - Prob. 41PCh. 11 - Prob. 42PCh. 11 - Prob. 43PCh. 11 - Prob. 44PCh. 11 - Prob. 45PCh. 11 - Prob. 46PCh. 11 - Show how to prepare each of the following...Ch. 11 - Prob. 48PCh. 11 - Prob. 49PCh. 11 - Prob. 50PCh. 11 - Compound A was converted to compound B by the...Ch. 11 - Suggest reasonable explanations for each of the...Ch. 11 - Prob. 53PCh. 11 - Prob. 54PCh. 11 - Prob. 55DSPCh. 11 - Prob. 56DSPCh. 11 - Prob. 57DSPCh. 11 - Prob. 58DSPCh. 11 - Prob. 59DSP
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- Give the IUPAC name of the 1,4-addition product of the reaction between 2-methylpenta-1,3-diene with HCl. No need to specify configuration/isomerism. These are reagents that seek a positive center. What is the IUPAC name of the product between the smallest ring that can form a stable cycloalkyne and hydrogen gas in the presence of palladium in calcium carbonate?arrow_forwardExplain how Hammond's postulate accounts for the higher selectivity of bromination reactions as compared to chlorination reactions.arrow_forwardBromine adds to cis- and trans-2-butene to give different diastereomers of 2,3-dibromobutane. What does this say about the mode of addition of bromine to thisalkene?arrow_forward
- Write the structures of all the alkenes that can be formed by dehydrohalogenation of the following alkyl halides using sodium ethoxide. Assuming that Zaitsev's rule applies, predict the alkene formed in greatest amount in each case.arrow_forward1-pentanol + NaBr/H2SO4 -> 1-bromopentane Is this substitution reaction reversible? In other words, would one expect to obtain an equilibrium mixture of the alcohol and bromoalkene at the end of the reaction of would one expect this reaction to go to completion? Justify your answer?arrow_forwardDraw the alkene structure that produced the following compounds in a ozonolysis reaction as specified. 1. O3 2. (CH3)2S You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. In cases where there is more than one answer, just draw one.arrow_forward
- What is the set of reagents in order to change 3-methyl-1-butyne into (trans)-2,6-dimethyl-3-heptene.arrow_forwardHow many alkene products, including E, Z isomers, might be obtained by dehydration of 3-methyl-3-hexanol with aqueous sulfric acid?arrow_forwardTwo substitution products result from the reaction between 3-chloro-3-methyl-1- butene with sodium acetate (CH3COO – Na +) in acetic acid under SN1. Identify the products.arrow_forward
- Free-radical chlorination of hexane gives very poor yields of 1-chlorohexane, while cyclohexane can be converted to chlorocyclohexane in good yield. How do you account for this difference?arrow_forwardBromine reacts with alkenes in methanol according to the equation when this reaction was carried out with 4-tert-butylcyclohexene, only one isomer was formed with the molecular formula C12H23BrO (80% yield). Which of the following is the structure more reasonable for this compound? Explain your reasoning through a corresponding mechanism.arrow_forwardHow many different monosubstituted products are possible when ethylcyclopentane reacts with one equivalent of bromine in the presence of light?arrow_forward
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