Homework Answers
Friedel-Crafts alkylation reaction cannot be performed on aniline because : The amino group attacks the Lewis acid to form an acid-base complex in which the aromatic ring is strongly deactivated.
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What is the correct structure of cysteine at pH 137 The pKa values are 1.7 (carboxylic...
Question 18 (4 points) Friedel-Crafts acylation reactions cannot be performed on aniline because: The amino group...
Question 18 (4 points) Friedel-Crafts acylation reactions cannot be performed on aniline because: The amino group gets acylated instead of the aromatic ring. The amino group attacks the Lewis acid to form an acid-base complex in which the aromatic ring is strongly deactivated. The amino group is strongly activating and multiple substitutions occur on the aromatic ring. The amino group is strongly deactivating preventing any substitution on the aromatic ring.
Question 30 (4 points) Friedel-Crafts alkylation reactions cannot be performed on benzaldehyde because: The aldehyde group...
Question 30 (4 points) Friedel-Crafts alkylation reactions cannot be performed on benzaldehyde because: The aldehyde group is strongly activating, and multiple substitutions occur on the aromatic ring. The aldehyde group gets alkylated instead of the aromatic ring. The aldehyde group attacks the Lewis acid to form an acid-base complex in which the aromatic ring is strongly deactivated The aldehyde group is moderately deactivating preventing any substitution on the aromatic ring. Question 31 (4 points) Which of the following produces no...
A compound shows an IR peak at 1740 cm-1. Its proton NMR spectrum consists of L.06...
A compound shows an IR peak at 1740 cm-1. Its proton NMR spectrum consists of L.06 ppm, t, 6H2.03 ppm, quintet, 2H, 2.40 ppm, t 4H and 2.45 ppm, 4. 4H. The most likely structure is Question 10 (4 points) Friedel-Crafts acylation reactions cannot be performed on aniline because: The amino group attacks the Lewis acid to form an acid-base complex in which the aromatic ring is strongly deactivated The amino group is strongly activating and multiple substitutions occur on...
help asap Friedel-Crafts acylation reactions cannot be performed on aniline because: The amino group attacks the...
help asap
Friedel-Crafts acylation reactions cannot be performed on aniline because: The amino group attacks the Lewis acid to form an acid-base complex in which the aromatic ring is strongly deactivated. The amino group is strongly activating and multiple substitutions occur on the aromatic ring. The amino group is strongly deactivating preventing any substitution on the aromatic ring. The amino group gets acylated instead of the aromatic ring. Which of the following produces no reaction? -O'Na+ + H2O CH3 Li+...
Question 5 (4 points) What is the major product of the following reaction? 1. NaOET Eto...
Question 5 (4 points) What is the major product of the following reaction? 1. NaOET Eto ΟΕΙ 2. Hot O OE EIO OH OE O O- EIO OH OEt OE EtO 애 OEt Question 6 (4 points) Friedel-Crafts acylation reactions cannot be performed on benzoic acid because: The carboxylic acid group gets acylated instead of the aromatic ring. The carboxylic acid group is moderately deactivating preventing any substitution on the aromatic ring. The carboxylic acid group attacks the Lewis acid...
What is the correct structure of histidine at pH 1? The pKa values are 1.8 (carboxylic...
What is the correct structure of histidine at pH 1? The pKa values are 1.8 (carboxylic acid), 9.2 (amine (conjugate acid)), and 6.0 (sidechain, the double bonded N in ring)?
10. What is a major problem with Friedel-Crafts alkylation? A) It requires high temperatures. B) The...
10. What is a major problem with Friedel-Crafts alkylation? A) It requires high temperatures. B) The conditions are too acidic. C) The starting material is frequently over-alkylated. D) The products coordinate with the aluminum chloride. 11. Which of the following statements about the mechanism of electrophilic aromatic substitution is not true? A) All electrophilic aromatic substitution reactions occur via a two-step mechanism. B) The transition state of the first step is lower in energy. C) The first step is the...
What is the correct structure of histidine at pH 1? The pKa values are 1.8 (carboxylic...
What is the correct structure of histidine at pH 1? The pKa values are 1.8 (carboxylic acid), 9.2 (amine (conjugate acid)), and 6.0 (sidechain, the double bonded N in ring)? 0C NH H2 CH C NH, NH H2 CH-C NHS OH O=C NH A
Question 18 (4 points) Friedel-Crafts acylation reactions cannot be performed on aniline because: The amino group gets acylated instead of the aromatic ring. The amino group attacks the Lewis acid to form an acid-base complex in which the aromatic ring is strongly deactivated. The amino group is strongly activating and multiple substitutions occur on the aromatic ring. The amino group is strongly deactivating preventing any substitution on the aromatic ring.
Question 30 (4 points) Friedel-Crafts alkylation reactions cannot be performed on benzaldehyde because: The aldehyde group is strongly activating, and multiple substitutions occur on the aromatic ring. The aldehyde group gets alkylated instead of the aromatic ring. The aldehyde group attacks the Lewis acid to form an acid-base complex in which the aromatic ring is strongly deactivated The aldehyde group is moderately deactivating preventing any substitution on the aromatic ring. Question 31 (4 points) Which of the following produces no...
A compound shows an IR peak at 1740 cm-1. Its proton NMR spectrum consists of L.06 ppm, t, 6H2.03 ppm, quintet, 2H, 2.40 ppm, t 4H and 2.45 ppm, 4. 4H. The most likely structure is Question 10 (4 points) Friedel-Crafts acylation reactions cannot be performed on aniline because: The amino group attacks the Lewis acid to form an acid-base complex in which the aromatic ring is strongly deactivated The amino group is strongly activating and multiple substitutions occur on...
help asap
Friedel-Crafts acylation reactions cannot be performed on aniline because: The amino group attacks the Lewis acid to form an acid-base complex in which the aromatic ring is strongly deactivated. The amino group is strongly activating and multiple substitutions occur on the aromatic ring. The amino group is strongly deactivating preventing any substitution on the aromatic ring. The amino group gets acylated instead of the aromatic ring. Which of the following produces no reaction? -O'Na+ + H2O CH3 Li+...
Question 5 (4 points) What is the major product of the following reaction? 1. NaOET Eto ΟΕΙ 2. Hot O OE EIO OH OE O O- EIO OH OEt OE EtO 애 OEt Question 6 (4 points) Friedel-Crafts acylation reactions cannot be performed on benzoic acid because: The carboxylic acid group gets acylated instead of the aromatic ring. The carboxylic acid group is moderately deactivating preventing any substitution on the aromatic ring. The carboxylic acid group attacks the Lewis acid...
What is the correct structure of histidine at pH 1? The pKa values are 1.8 (carboxylic acid), 9.2 (amine (conjugate acid)), and 6.0 (sidechain, the double bonded N in ring)?
10. What is a major problem with Friedel-Crafts alkylation? A) It requires high temperatures. B) The conditions are too acidic. C) The starting material is frequently over-alkylated. D) The products coordinate with the aluminum chloride. 11. Which of the following statements about the mechanism of electrophilic aromatic substitution is not true? A) All electrophilic aromatic substitution reactions occur via a two-step mechanism. B) The transition state of the first step is lower in energy. C) The first step is the...
What is the correct structure of histidine at pH 1? The pKa values are 1.8 (carboxylic acid), 9.2 (amine (conjugate acid)), and 6.0 (sidechain, the double bonded N in ring)? 0C NH H2 CH C NH, NH H2 CH-C NHS OH O=C NH A
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