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the following compound i
ontributor of the following 5 Which is the correct resonance conth compound?...
5 tributor of the following Which is the correct resonance cont compound? D) None of the...
5 tributor of the following Which is the correct resonance cont compound? D) None of the Above D y cooh Which is the strongest acid? А) сносн,он NO, B) CH.COOH c) CI-CH.COOH E) Both C and D @ which is the product of 1,4- addition of the following reaction? CH=CH-CH=CH, HBr , ? A) CH₃-CH-CH=CH2 () CH₃ -CH=CH-CH₂Br. B) CH₂ Br-CH₂-CH=CH₂ D) All of the Above © which is the major product of the following more Bay E) No Reaction...
مله CL. ACI 2) CI2, FeCl3 3) Zn(Hg). HCl(aq) What is the major product of the...
مله CL. ACI 2) CI2, FeCl3 3) Zn(Hg). HCl(aq) What is the major product of the above reaction sequences? CI CI СІ CI KMnO4 HSO4 What is the major product of the above reaction? COOH О КС COOH COOH HOOC Со он соон ок соон Which of the following protons gives a 'H NMR signal at 4.6 ppm? BH HC A H3G- D -CH2 E 0-CH, E B D Ос DA ТОН H-S0, он H,0 What is the major product...
7) Which of the following is not an acceptable resonance structure of I? он ОН он...
7) Which of the following is not an acceptable resonance structure of I? он ОН он он н В. D. E С. A. char 8) Which structure makes the largest contribution to the resonance hybrid? rean cente in an S rdon +CH CH CH CH CH сH CH CH СH Cн E. CH2 +CH2 CH2 CH2 В. A. С. D. 9) Which compound is the expected product of this reaction? OCH, heat А. В. С. D. E.
5.59. The following equations represent (a) an addition reaction, (b) a substitution reaction, (c) an elimination...
5.59. The following equations represent (a) an addition reaction, (b) a substitution reaction, (c) an elimination reaction, and (d) a rearrangement. Calculate for each, and compare amongst the various reactions (i) the atom efficiencies for atoms of each element, (ii) the overall atom efficiency, and (iii) the E-factor. In calculating the E-factor, state your assumption about which is the desired product. Br а. Br2 Br Н С. b. Н.С ОН Br H20 HBr Br с. ""CHз CH,CH2O-Na Н.С CH3 CH3...
5:43 PM Thu Oct 31 29% Chem2542 Assignment-6.doc 1. Provide the structure of diene and dienophile...
5:43 PM Thu Oct 31 29% Chem2542 Assignment-6.doc 1. Provide the structure of diene and dienophile required for the synthesis of the following compound via Diels-Alder reaction. Ph сно сно 2. The following a,b-unsaturated ketone can react with nucleophilic reagents to yield 1,2-addition as well as 1,4-addition (conjugate addition) products depending on the nucleophilic reagent. Provide the structure of the major primary 1,2-addition or 1,4 addition product formed in each reaction 1. CH,MgCI 2. HC 1. LIAIH 2. HC 1....
the following compound is 9 Which is the major product of the follow CHOCH, OH NaBr...
the following compound is
9 Which is the major product of the follow CHOCH, OH NaBr ? of the following substitution reaction? D) All of the Above E) None of the Above A) CH₃ CH₂ Br B) CH3CH(Na, c) CH₂-E-H 20 Which is the major product of 5 CHA CH=CH-CH2 HBr ? the following substitution reaction? major product of CHE OH SHA A) CH₂ CH-CH=CH3 CH2 () CH3 C=CH-CH2 B) CH3 C- CH₂ - CH3 D) None of the Above...
Chem 202, Fall 2019 Homework Packet 8 (Resonance and Aromaticity) 4. Reaction Fill-ins! Predict the product(s)...
Chem 202, Fall 2019 Homework Packet 8 (Resonance and Aromaticity) 4. Reaction Fill-ins! Predict the product(s) OR starting material of the following reactions. Remember, Hydride shifts are possible if/when a more stable carbocation can exist (depending on reaction mechanism)! Put your answers in the indicated boxes H2SO4 (cat.), H20 а. 1,2-product 1,4-product Br HBr Br Minor produt Minor product Major product НC C. 1,2-product 1,4-product HI d. ОН MAJOR prod Minor prod e. Draw the FULL electron-pushing mechanism for the...
13) Which of the following is/are the main product(s) of the following reaction? (2 pts) CH2=CH-CH-CH2...
13) Which of the following is/are the main product(s) of the following reaction? (2 pts) CH2=CH-CH-CH2 HBr ? A) CH2CH=CHCH3 CH2CH2CH=CH2 C) CH3CHCH=CH2 D) A and B E) A and C 14) What is/are the product(s) from the following reaction? (2 pts) e + Ha ? CHCH A) I only B) Il only C) I is minor, II is major D) I is major, II is minor E) equal amounts of I and II 16) Provide the structure of the...
please answer questions 9-12 Question 9 1 pts Which of the following statements describes the reactivity...
please answer questions 9-12
Question 9 1 pts Which of the following statements describes the reactivity of alkynes? An alkyne is an electron-rich molecule and therefore reacts as a nucleophile. When a symmetrical internal alkyne reacts with HBr, two products are formed. Unlike alkenes, alkynes fail to undergo electrophilic addition reactions The o bonds of alkynes are greater in energy than the rt bonds and, therefore, are more reactive Alkynes react as electrophiles, whereas alkenes react as nucleophiles What is...
b) When the following deuterated compound reacts under the same conditions, the rate of formation of...
b) When the following deuterated compound reacts under the same conditions, the rate of formation of the substitution product is unchanged, but the elimination rate is slowed by a factor of 7. Why is the elimination slowed, but substitution unchanged? D3C-CH-CD3 + KOH - D2C=CH-CD3 + D3C-CH-CD3 Br alcohol OH (20) 7. Which reaction of the following pairs will take place more rapidly? a) CH, CH, CH, Br + CH, OH — CH, CH, CH, Br + CH30 — b)...
5 tributor of the following Which is the correct resonance cont compound? D) None of the Above D y cooh Which is the strongest acid? А) сносн,он NO, B) CH.COOH c) CI-CH.COOH E) Both C and D @ which is the product of 1,4- addition of the following reaction? CH=CH-CH=CH, HBr , ? A) CH₃-CH-CH=CH2 () CH₃ -CH=CH-CH₂Br. B) CH₂ Br-CH₂-CH=CH₂ D) All of the Above © which is the major product of the following more Bay E) No Reaction...
مله CL. ACI 2) CI2, FeCl3 3) Zn(Hg). HCl(aq) What is the major product of the above reaction sequences? CI CI СІ CI KMnO4 HSO4 What is the major product of the above reaction? COOH О КС COOH COOH HOOC Со он соон ок соон Which of the following protons gives a 'H NMR signal at 4.6 ppm? BH HC A H3G- D -CH2 E 0-CH, E B D Ос DA ТОН H-S0, он H,0 What is the major product...
7) Which of the following is not an acceptable resonance structure of I? он ОН он он н В. D. E С. A. char 8) Which structure makes the largest contribution to the resonance hybrid? rean cente in an S rdon +CH CH CH CH CH сH CH CH СH Cн E. CH2 +CH2 CH2 CH2 В. A. С. D. 9) Which compound is the expected product of this reaction? OCH, heat А. В. С. D. E.
5.59. The following equations represent (a) an addition reaction, (b) a substitution reaction, (c) an elimination reaction, and (d) a rearrangement. Calculate for each, and compare amongst the various reactions (i) the atom efficiencies for atoms of each element, (ii) the overall atom efficiency, and (iii) the E-factor. In calculating the E-factor, state your assumption about which is the desired product. Br а. Br2 Br Н С. b. Н.С ОН Br H20 HBr Br с. ""CHз CH,CH2O-Na Н.С CH3 CH3...
5:43 PM Thu Oct 31 29% Chem2542 Assignment-6.doc 1. Provide the structure of diene and dienophile required for the synthesis of the following compound via Diels-Alder reaction. Ph сно сно 2. The following a,b-unsaturated ketone can react with nucleophilic reagents to yield 1,2-addition as well as 1,4-addition (conjugate addition) products depending on the nucleophilic reagent. Provide the structure of the major primary 1,2-addition or 1,4 addition product formed in each reaction 1. CH,MgCI 2. HC 1. LIAIH 2. HC 1....
the following compound is
9 Which is the major product of the follow CHOCH, OH NaBr ? of the following substitution reaction? D) All of the Above E) None of the Above A) CH₃ CH₂ Br B) CH3CH(Na, c) CH₂-E-H 20 Which is the major product of 5 CHA CH=CH-CH2 HBr ? the following substitution reaction? major product of CHE OH SHA A) CH₂ CH-CH=CH3 CH2 () CH3 C=CH-CH2 B) CH3 C- CH₂ - CH3 D) None of the Above...
Chem 202, Fall 2019 Homework Packet 8 (Resonance and Aromaticity) 4. Reaction Fill-ins! Predict the product(s) OR starting material of the following reactions. Remember, Hydride shifts are possible if/when a more stable carbocation can exist (depending on reaction mechanism)! Put your answers in the indicated boxes H2SO4 (cat.), H20 а. 1,2-product 1,4-product Br HBr Br Minor produt Minor product Major product НC C. 1,2-product 1,4-product HI d. ОН MAJOR prod Minor prod e. Draw the FULL electron-pushing mechanism for the...
13) Which of the following is/are the main product(s) of the following reaction? (2 pts) CH2=CH-CH-CH2 HBr ? A) CH2CH=CHCH3 CH2CH2CH=CH2 C) CH3CHCH=CH2 D) A and B E) A and C 14) What is/are the product(s) from the following reaction? (2 pts) e + Ha ? CHCH A) I only B) Il only C) I is minor, II is major D) I is major, II is minor E) equal amounts of I and II 16) Provide the structure of the...
please answer questions 9-12
Question 9 1 pts Which of the following statements describes the reactivity of alkynes? An alkyne is an electron-rich molecule and therefore reacts as a nucleophile. When a symmetrical internal alkyne reacts with HBr, two products are formed. Unlike alkenes, alkynes fail to undergo electrophilic addition reactions The o bonds of alkynes are greater in energy than the rt bonds and, therefore, are more reactive Alkynes react as electrophiles, whereas alkenes react as nucleophiles What is...
b) When the following deuterated compound reacts under the same conditions, the rate of formation of the substitution product is unchanged, but the elimination rate is slowed by a factor of 7. Why is the elimination slowed, but substitution unchanged? D3C-CH-CD3 + KOH - D2C=CH-CD3 + D3C-CH-CD3 Br alcohol OH (20) 7. Which reaction of the following pairs will take place more rapidly? a) CH, CH, CH, Br + CH, OH — CH, CH, CH, Br + CH30 — b)...
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