1. Which of the following is the correct structure of (E)-2-methyl-1,3-pentadiene? ad gel de X. IV A) I B) II C) III DIV E) V da 11 identify the reagents necessary to carry out the following transformation. - go A) 1. H₂, Pd/C B) 1. PBr3: 2. (CH3)3COK C) 1. Br2, hv; 2. (CH3)3COK; 3. NBS, heat; 4. (CH3)3COK D) 1. SOC12/pyridine; 2. Mg in ether; 3. H2O; 4. (CH3)3COK E) 1. (CH3)3COK; 2. NBS, heat; 3. (CH3)3COK Which statement is not true about the Diels-Alder reaction? A) It is a [4-2] cycloaddition reaction. B) The diene must be in the s-cis conformation to react. C) Most Diels-Alder reactions are reversible. D) It is a sigmatropic rearrangement. Electron donating groups on the diene and electron withdrawing groups on the dienophile favor product formation.
1. Which of the following is the correct structure of (E)-2-methyl-1,3-pentadiene? ad gel de X. IV A) I B) II C) III DIV E) V da 11 identify the reagents necessary to carry out the following transformation. - go A) 1. H₂, Pd/C B) 1. PBr3: 2. (CH3)3COK C) 1. Br2, hv; 2. (CH3)3COK; 3. NBS, heat; 4. (CH3)3COK D) 1. SOC12/pyridine; 2. Mg in ether; 3. H2O; 4. (CH3)3COK E) 1. (CH3)3COK; 2. NBS, heat; 3. (CH3)3COK Which statement is not true about the Diels-Alder reaction? A) It is a [4-2] cycloaddition reaction. B) The diene must be in the s-cis conformation to react. C) Most Diels-Alder reactions are reversible. D) It is a sigmatropic rearrangement. Electron donating groups on the diene and electron withdrawing groups on the dienophile favor product formation.
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![1. Which of the following is the correct structure of (E)-2-methyl-1,3-pentadiene?
X.
A) I
B) II
C) III
DIV
E) V
IV
identify the reagents necessary to carry out the following transformation.
A) 1. H₂, Pd/C
B) 1. PBr3; 2. (CH3)3COK
C) 1. Br2, hv; 2. (CH3)3COK; 3. NBS, heat; 4. (CH3)3COK
D) 1. SOC12/pyridine; 2. Mg in ether; 3. H2O; 4. (CH3)3COK
E) 1. (CH3)3COK; 2. NBS, heat; 3. (CH3)3COK
Which statement is not true about the Diels-Alder reaction?
A) It is a [4+2] cycloaddition reaction.
B) The diene must be in the s-cis conformation to react.
C) Most Diels-Alder reactions are reversible.
D) It is a sigmatropic rearrangement.
Electron donating groups on the diene and electron withdrawing groups on
the dienophile favor product formation.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3cd79ed5-3709-4857-a782-163c0313c2b6%2F38b55c23-7147-45a3-85c8-6166d8e0d6f7%2F40qzkz_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. Which of the following is the correct structure of (E)-2-methyl-1,3-pentadiene?
X.
A) I
B) II
C) III
DIV
E) V
IV
identify the reagents necessary to carry out the following transformation.
A) 1. H₂, Pd/C
B) 1. PBr3; 2. (CH3)3COK
C) 1. Br2, hv; 2. (CH3)3COK; 3. NBS, heat; 4. (CH3)3COK
D) 1. SOC12/pyridine; 2. Mg in ether; 3. H2O; 4. (CH3)3COK
E) 1. (CH3)3COK; 2. NBS, heat; 3. (CH3)3COK
Which statement is not true about the Diels-Alder reaction?
A) It is a [4+2] cycloaddition reaction.
B) The diene must be in the s-cis conformation to react.
C) Most Diels-Alder reactions are reversible.
D) It is a sigmatropic rearrangement.
Electron donating groups on the diene and electron withdrawing groups on
the dienophile favor product formation.
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