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Question 13 (4 points) Which of the following is the best synthesis for 2-bromopropane? Addition of...
Choose the sequence of reagents which would best accomplish the following transformation: 2-bromopropane ----------> 1,2-dibromopropane [(R)...
Choose the sequence of reagents which would best accomplish the following transformation: 2-bromopropane ----------> 1,2-dibromopropane [(R) + (S)] 01. (i) KMnO4, NaOH in water at 0 °C 2. (i) Br2 in CCl4 (ii) excess NaNH2 (iii) CH31 (iv) H20, H2SO4, HgSO4 Choose the sequence of reagents which would best accomplish the following transformation: 2-bromopropane ---------> 1,2-dibromopropane [(R) + (S)] 01. (i) KMnO4, NaOH in water at 0 °C 2. (i) Br2 in CC14 (ii) excess NaNH2 (iii) CH3 (iv) H20,...
please show proper initiation and propagation mechanism 62) Which of the following is the best synthesis...
please show proper initiation and propagation mechanism
62) Which of the following is the best synthesis of 1, 1-dibromopropane, Br CH3CH2CH ? Br Br2 CH3CH=CH2 CCl4 Br2 light 2 HBr B) CH3CH=CH2 C) CH3C=CH 2 HB: D) CH3C=CH peroxide CH3CH=CH2 Brz E) H20
4) Which of the following reactions is faster: Addition of HBr to 2-methyl propene or addition...
4) Which of the following reactions is faster: Addition of HBr to 2-methyl propene or addition of HBr to trans-2-butene. Assume the energy difference between starting alkenes can be ignored. Explain. (2 pts)
QUESTION 1 2 points Save Answer Which statement applies to halide S N 1, but NOT...
QUESTION 1 2 points Save Answer Which statement applies to halide S N 1, but NOT SN 2 substitution reactions? Reaction is favored because a weaker base is produced. The nucleophile substitutes the leaving group in the substrate. A carbocation intermediate is involved in the reaction Halogens act as leaving group. QUESTION 2 2 points Save Answer What is the expect product for the following reaction HCEN CHз Нс Br Cн Нас Br CH3 Нас CH3 Нас CN CH3 Hас...
Please answer! thanks Question 33 2 pts Which reagent/set of reagents (from the list above) should...
Please answer! thanks
Question 33 2 pts Which reagent/set of reagents (from the list above) should be used for the following reaction? reagent(s) Reagents Questio 3 pts Which we [Select) A-HBr B - NBS, hy C - HBr, peroxides D-Br2 E-Br2, light F-NaNH2 G - Na, NH3 H - KCN, DME |- CI2 J-CI2, H20 K-H2, Pt L-H20, H2SO4 M - Os04, etc (see the list) N - Hg(OAc)2, etc (see the list) O(see structure in the list) P-BH3, etc...
Question 32 (4 points) Which arrow is used to indicate resonance structures? ξ Ο Ο Ο...
Question 32 (4 points) Which arrow is used to indicate resonance structures? ξ Ο Ο Ο Ο Question 33 (4 points) Which reagents would lead to the following transformation? H3C H H3C-=-H Br OHBr (1 mol) O Brz O HBr (1 mol), peroxides Bre, heat Question 34 (4 points) In which direction would plane-polarized light rotate when passed through a solution of the following CH F H- ci HCI CHF clockwise O counter-clockwise Ono rotation cannot be determined Question 35.(4...
need help with the boxed bullet point. writing the chemical reaction scheme for the experiment. Synthesis of an A...
need help with the boxed bullet point. writing the chemical
reaction scheme for the experiment.
Synthesis of an Alkyl Halide: A Nucleophilic Substitution Reaction, Part I Pre-lab Assignment for Synthesis of an Alkyl Halide: A Nucleophilic Substitution Reaction, Part 1 1. From The Organic Chem Lab Survival Manual ( edition) by Zubrick • Review pages 201-204: Standard Reflux. • Review pages 127-140: Extraction • Review pages 164-189: Distillation, Simple Distillation. The Distillation Example, and The Distillation Mistake. 2. Read this...
Question 3 (2 points) Predict the product(s) of the following reaction. HBr ROOR a) HBr addition...
Question 3 (2 points) Predict the product(s) of the following reaction. HBr ROOR a) HBr addition at the alkene position following Markonikov's rule Ob) H20 addition at the alkene position following Markonikov's rule c) HBr addition at the alkene position following Anti-Markonikov's rule d) H20 addition at the alkene position following Anti-Markonikov's rule Question 4 (2 points) For which of the following compounds will the M+2 peak intensity be equal to the intensity of the molecular ion peak M? a)...
Question 30 (4 points) What is the best set of reagents and order for the following...
Question 30 (4 points) What is the best set of reagents and order for the following transformation? ОН ? 1) CH3CH2C1, AlCl3; 2) Br2, hv; 3) NaOH 4) BH3-THF; 5) H2O2, KOH 1) Br2, FeBrz; 2) Mg, ether; 3) 4) H30+; 5) PCC 1) CH3C1, AlCl3; 2) NBS, hv; 3) NaOH; 4) PCC 1) Br2, FeBrz; 2) Mg, ether; 3) H2CO; 4) H30+; 5) PCC
QUESTION 3 Which compound will have a singlet around 2.17 cyclohexanone cyclopentanone 3-pentanone 2-pentanone QUESTION 4...
QUESTION 3 Which compound will have a singlet around 2.17 cyclohexanone cyclopentanone 3-pentanone 2-pentanone QUESTION 4 QUESTION 5 What is the most likely product of the reaction below? 1. THF-BH, 2. HOA NaOH secondary alcohol tertiary alcohol geminal diol vicinal diol QUESTION 6 What would be the most likely product of the following reaction? H2 Pt cyclohexane (1 R2R)-1,2-dimethylcyclohexane (15,25)-1,2-dimethylcyclohexane meso-1,2-dimethylcyclohexane QUESTION 7 Which set of reagents/condition would favor the following transformation? ? Br HBr, heat PBr3 Br2, H20 NBS,...
Choose the sequence of reagents which would best accomplish the following transformation: 2-bromopropane ----------> 1,2-dibromopropane [(R) + (S)] 01. (i) KMnO4, NaOH in water at 0 °C 2. (i) Br2 in CCl4 (ii) excess NaNH2 (iii) CH31 (iv) H20, H2SO4, HgSO4 Choose the sequence of reagents which would best accomplish the following transformation: 2-bromopropane ---------> 1,2-dibromopropane [(R) + (S)] 01. (i) KMnO4, NaOH in water at 0 °C 2. (i) Br2 in CC14 (ii) excess NaNH2 (iii) CH3 (iv) H20,...
please show proper initiation and propagation mechanism
62) Which of the following is the best synthesis of 1, 1-dibromopropane, Br CH3CH2CH ? Br Br2 CH3CH=CH2 CCl4 Br2 light 2 HBr B) CH3CH=CH2 C) CH3C=CH 2 HB: D) CH3C=CH peroxide CH3CH=CH2 Brz E) H20
4) Which of the following reactions is faster: Addition of HBr to 2-methyl propene or addition of HBr to trans-2-butene. Assume the energy difference between starting alkenes can be ignored. Explain. (2 pts)
QUESTION 1 2 points Save Answer Which statement applies to halide S N 1, but NOT SN 2 substitution reactions? Reaction is favored because a weaker base is produced. The nucleophile substitutes the leaving group in the substrate. A carbocation intermediate is involved in the reaction Halogens act as leaving group. QUESTION 2 2 points Save Answer What is the expect product for the following reaction HCEN CHз Нс Br Cн Нас Br CH3 Нас CH3 Нас CN CH3 Hас...
Please answer! thanks
Question 33 2 pts Which reagent/set of reagents (from the list above) should be used for the following reaction? reagent(s) Reagents Questio 3 pts Which we [Select) A-HBr B - NBS, hy C - HBr, peroxides D-Br2 E-Br2, light F-NaNH2 G - Na, NH3 H - KCN, DME |- CI2 J-CI2, H20 K-H2, Pt L-H20, H2SO4 M - Os04, etc (see the list) N - Hg(OAc)2, etc (see the list) O(see structure in the list) P-BH3, etc...
Question 32 (4 points) Which arrow is used to indicate resonance structures? ξ Ο Ο Ο Ο Question 33 (4 points) Which reagents would lead to the following transformation? H3C H H3C-=-H Br OHBr (1 mol) O Brz O HBr (1 mol), peroxides Bre, heat Question 34 (4 points) In which direction would plane-polarized light rotate when passed through a solution of the following CH F H- ci HCI CHF clockwise O counter-clockwise Ono rotation cannot be determined Question 35.(4...
need help with the boxed bullet point. writing the chemical
reaction scheme for the experiment.
Synthesis of an Alkyl Halide: A Nucleophilic Substitution Reaction, Part I Pre-lab Assignment for Synthesis of an Alkyl Halide: A Nucleophilic Substitution Reaction, Part 1 1. From The Organic Chem Lab Survival Manual ( edition) by Zubrick • Review pages 201-204: Standard Reflux. • Review pages 127-140: Extraction • Review pages 164-189: Distillation, Simple Distillation. The Distillation Example, and The Distillation Mistake. 2. Read this...
Question 3 (2 points) Predict the product(s) of the following reaction. HBr ROOR a) HBr addition at the alkene position following Markonikov's rule Ob) H20 addition at the alkene position following Markonikov's rule c) HBr addition at the alkene position following Anti-Markonikov's rule d) H20 addition at the alkene position following Anti-Markonikov's rule Question 4 (2 points) For which of the following compounds will the M+2 peak intensity be equal to the intensity of the molecular ion peak M? a)...
Question 30 (4 points) What is the best set of reagents and order for the following transformation? ОН ? 1) CH3CH2C1, AlCl3; 2) Br2, hv; 3) NaOH 4) BH3-THF; 5) H2O2, KOH 1) Br2, FeBrz; 2) Mg, ether; 3) 4) H30+; 5) PCC 1) CH3C1, AlCl3; 2) NBS, hv; 3) NaOH; 4) PCC 1) Br2, FeBrz; 2) Mg, ether; 3) H2CO; 4) H30+; 5) PCC
QUESTION 3 Which compound will have a singlet around 2.17 cyclohexanone cyclopentanone 3-pentanone 2-pentanone QUESTION 4 QUESTION 5 What is the most likely product of the reaction below? 1. THF-BH, 2. HOA NaOH secondary alcohol tertiary alcohol geminal diol vicinal diol QUESTION 6 What would be the most likely product of the following reaction? H2 Pt cyclohexane (1 R2R)-1,2-dimethylcyclohexane (15,25)-1,2-dimethylcyclohexane meso-1,2-dimethylcyclohexane QUESTION 7 Which set of reagents/condition would favor the following transformation? ? Br HBr, heat PBr3 Br2, H20 NBS,...
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