8. Circle the most acidic one among the hydrogens shown in each molecule below.
Which of the hydrogens shown in the following molecule would be most acidic? HỌN NH 2) O A1) O B2)
8. In each molecule shown below two protons are clearly identified. Determine which one of the protons is more acidic and circle that proton. (6 pts) CH3 S-O O H
Circle and rank the 3 most acidic Hydrogens and then explain its acidity using structures and four effects HS ОН
T Ou CIRCLE AND RANK THE 3 MOST ACIDIC HYDROGENS AND THE EXPLAIN ITS ACIDITY USING STRUCTUERES AND FOUR EFFECTS. edddddddd HS OH
2 Circle the most acidic hydrogen(s) in the molecule. (8 pts) H 1 HH H a. H HHH HHHH 3. Determine the pK, for each type of hydrogen in the molecule. Write the number above the line for each type of hydrogen. (10 pts) ноно HHHH 4. Draw an arrow pointing to the most basic atom in each molecule. (8 pts) b. OCH 5. Show the synthesis of the target molecule. You may use benzene, potassium cyanide, and chloromethane as...
Rank the bold-faced hydrogens shown in order of increasing acidity from 1 = least acidic to 3 = most acidic.
c. Identify each group of chemically nonequivalent hydrogens in the molecule below by labeling each of its hydrogens with an "a" for the first group, a "b" for the second, a "c" for the third, and so on. HH Η ннн i. Clearly circle the hydrogen group that will appears farthest upfield in the 'H NMR spectrum of the molecule.
Consider the indicated protons in the molecules shown below. Circle the molecule with the lower pK, and explain your choice with an appropriate drawing. NH ZE OH оме Но, . Meo b) Ho Ho (Rationalize with a one sentence explanation.) d) Rank the following molecules in order from least acidic to most acidic. Rationalize your choice with an appropriate drawing.
Which one of the following indicated hydrogens is most acidic? Which of the following statements explains the ketone-enol equilibrium shown below? ۲۴ و O A. Simple enols are more stable. 0 O B. The enol tautomer is stabilized by the conjugated TT system. 0 C. The enol tautomer is stabilized by the intramolecular hydrogen bonding. O D. The diketone is less coplanar. Both B and C
Rank the bold-faced hydrogens shown in order of increasing
acidity
from 1 = most acidic to 3 = least acidic.
A
B
C
RC=C H RCH=-H H3C H