Concept explainers
Interpretation:
The leaving group in Table 9-4 that is the weakest base is to be identified from the
Concept introduction:
A weak base is stable and is, therefore, a good leaving group. The
The rate of an
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Organic Chemistry: Principles and Mechanisms (Second Edition)
- DBU, 1,8-diazabicyclo[5.4.0]undec-7-ene, is a base we will encounter inelimination reactions. Which N atom is more basic in DBU?Explain your choice.arrow_forwardWhich is a stronger acid: one with an acid dissociation constant of 3.4 X 10-3 or one with an acid dissociation constant of 2.1 X 10-4?arrow_forwardThe acid dissociation constant (Ka) for loss of a proton from cyclohexanol is 1 X10-16. a. Draw a reaction coordinate diagram for loss of a proton from cyclohexanol.arrow_forward
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- Chemistry complete for a rate. answer both questions for a rate 1. write out the mechanism for the reaction between ethyne and NaNH2. Label the acid snd the base predicting which way the reaction is favored. 2. do the same for C6H5OH and CH3CH2ONaarrow_forwardDBU, 1,8-diazabicyclo[5.4.0]undec-7-ene, is a base we will encounter in elimination reactions in Chapter 8. Which N atom is more basic in DBU? Explain your choice.arrow_forwardTreatment of indene with NaNH2 forms its conjugate base in a Brønsted– Lowry acid–base reaction. Draw all reasonable resonance structures for indene's conjugate base, and explain why the pKa of indene is lower than the pKa of most hydrocarbons.arrow_forward
- Treatment of indene with NaNH2 forms its conjugate base in a Brønsted–Lowry acid–base reaction. Draw all reasonable resonance structures for indene’s conjugate base, and explain why the pKa of indene is lower than the pKa of most hydrocarbons.arrow_forwardConsider the following compounds that vary from nearly nonacidic to strongly acidic. Draw the conjugate bases of these compounds, and explain why the acidity increases so dramatically with substitution by nitro groups.CH4 CH3NO2 CH2(NO2)2 CH(NO2)3 pKa ≅ 50 pKa = 10.2 pKa = 3.6 pKa = 0.17arrow_forwardWhich acid do you think would have the lower pKa value: HBrO4, HBrO3, HBrO2, or HBrO? Explain your answer.arrow_forward
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