Concept explainers
(a)
Interpretation: The given reaction is to be classified as either a proton transfer reaction or a reaction of electrophile and nucleophile. The movement of electrons is to be shown by curved arrows.
Concept introduction: Lewis acid accepts an electron pair. It acts as an electrophile Lewis base donates an electron pair. It acts as nucleophile. Conjugate base is formed by the loss of a proton from an acid while conjugate acid is formed by the gain of electron by a base.
(b)
Interpretation: The given reaction is to be classified as either a proton transfer reaction or a reaction of electrophile and nucleophile. The movement of electrons is to be shown by curved arrows.
Concept introduction: Lewis acid accepts an electron pair. It acts as an electrophile Lewis base donates an electron pair. It acts as nucleophile. Conjugate base is formed by the loss of a proton from an acid while conjugate acid is formed by the gain of electron by the base.
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EBK ORGANIC CHEMISTRY
- Complete these reactions. (a) (b)arrow_forwardCHOOSE THE LETTER OF THE CORRECT ANSWER. 1. An aldehyde commonly exhibits a nucleophilic addition type of reaction. When a nucleophile attacks a carbonyl carbon, what happens to the oxygen atom in the structure? Refer to the structure below. a. Oxygen atom obtains a net negative charge. b. Oxygen atom acts as the new electrophile. c. Oxygen atom becomes more electronegative. d. Oxygen atom transforms to an alkoxide group.arrow_forwardLabel the electrophilic and nucleophilic sites in each molecule.arrow_forward
- Draw the products of each Lewis acid–base reaction. Label the electrophile and nucleophile.arrow_forwardFor alkylhalides, elimination reaction is much favored than substitution reaction when A. Temperature is relatively high. B. Temperature is relatively low. C. Base is relatively weak D. Pressure is relatively high.arrow_forwardConsider the following bond: Is this bond a... unreactive nucleophile Lewis acid electrophilearrow_forward
- "Nucleophilic substitution reaction"" When does the bond between the leaving group and C break? Does it break at the same time that the new bond between the nucleophile and C forms? Or Does the bond to the leaving group break first.arrow_forwardDefine the following terms: a. reaction mechanism b. carbocation c. enediol d. general acid e. general basearrow_forwardDefine Reaction as a Nucleophile ?arrow_forward
- Draw the products of each nucleophilic substitution reaction.arrow_forward7. (Chapters 6 and 8) Within the following set, which is more stable, and why? CH3 CH3 H3C- -C=CH- CH2 H2C=Ć- -CH CH3 8. (Chapter 12) What type of instability will an intermediate need to address following the reaction of a nucleophile/base that has a negative charge with a pi bond that has uneven electron distribution between atoms with different electronegativities (C=O)? 9. (Chapter 9) Circle the carbon that will be unstable in the intermediate of the following reaction. Then, state the reason for your choice, and also indicate what type of instability it will be. H,C-CH,- C ECH with NaNH2 10. (Chapters 12 and 13) What are three sources used to provide electrons to an electron-deficient carbon with a leaving group? 1. 2. 3.arrow_forwardHow Nucleophilic substitution occurs ?arrow_forward
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