Concept explainers
Interpretation:
The curved arrow notation for the proton transfer reaction between the hydride anion and ethanol is to be drawn. Using the
Concept introduction:
The curved arrow starts with unshared electrons pair, which has a higher electron density and points in the direction of a site of electron deficiency. The curved arrow begins with a nucleophile and points toward an electrophile. A hydride anion acts as a nucleophile, and an ethanol molecule acts as an electrophile. So, the curved arrow starts from
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Chapter 6 Solutions
Organic Chemistry: Principles and Mechanisms (Second Edition)
- Will acetylene react with sodium hydride according to the following equation to form a salt and hydrogen, H2? Using pKa values given in Table 4.1, calculate Keq for this equilibrium.arrow_forwardWhat is the conjugate base of the acid, NH +? What is the pK of NH +?arrow_forwardDraw the products of each proton transfer reaction. Label the acid and base in the starting materials, and the conjugate acid and base in the products. (c) + H2SO4arrow_forward
- A research student is trying to deprotonate A with t-butyllithium (shown above the arrow) which is a strong base to make anion B, however this desired deprotonation was not successful. Which of the following statements explains why the reaction failed? Li (CH3)2CHOH (solvent) A O t-butyl lithium is not a strong enough base to deprotonate A O the proton the student is trying to remove is not the most acidic proton in A O A will deprotonate the t-butyl lithium, rather than the other way around The active base in solution will be (CH3)2CHO` which is not a strong enough base to deprotonate Aarrow_forward1. 1a) 1b) 1c) 1d) For each of the following reactions: Draw a reaction mechanism (curved arrows) and comeplete the reaction on the right side. Then predict which side of the equilibrium is favored, left, right or either. Circle the stronger acid. If the strength are euqal, circle both. Give one word from the HIRE rules to state the most important factor in your determination and put it in the box. O N SH + F3C OH + + _N_ + OH Oo. 8arrow_forwardI understand that Ka refers to the rate (constant) that HA acid dissociates into base A- and proton H+. I don't understand the pKa equation. What is the "p"? What does negative logarithm mean? Thank you.arrow_forward
- 4. Please write the type of reaction each equation represents (elimination, addition, rearrangement, substitution). Write your answers beneath each reaction. HNE Pd catatlyst HyC NaCN NE acid cat NC "OH CH Lewis acid Me base UV ightarrow_forwardFill in the left side of this equilibrium constant equation for the reaction of diethylmethylamine (C,H13N), a weak base, with water. Ü - K,arrow_forwardDraw an energy diagram for the Brønsted–Lowry acid–base reaction of CH3CO2H with −OC(CH3)3 to form CH3CO2− and (CH3)3COH. Label the axes, starting materials, products, ΔH°, and Ea. Draw the structure of the transition state.arrow_forward
- For the following molecules, identify the basic electron pairs. For each basic electron pair that you identify, draw the conjugate acid that results from that basic electron pair reacting with a proton (H+). For molecules with more than one basic electron pair, draw a separate conjugate acid for each onearrow_forwardWhen the reaction below reaches equilibrium, does the equilibrium lie on the left or the right side? Briefly explain.ClO– + CH3CO2H ⇌ HClO + CH3CO2–arrow_forwardWhich is the stronger base between NH3 and H2O ,is low pka =strong base?arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning