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4. Write the 1,2 and 1,4 products of addition of HBr to 1,3-hexadiene. Write the complete...
When 1,4-dimethylcyclohepta-1,3-diene is treated with HBr at an elevated temperature, the 1,2 product predominates rather than the 1,4 adduct. Explain and draw the 1,2 and 1,4 products.
When 1,4-dimethylcyclohepta-1,3-diene is treated with HBr at an elevated temperature, the 1,2 product predominates rather than the 1,4 adduct. Explain and draw the 1,2 and 1,4 products.
Draw the major 1,2- and 1,4-addition products obtained in the reaction shown. Assume that both are...
Draw the major 1,2- and 1,4-addition products obtained in the reaction shown. Assume that both are derived from the most stable carbocation intermediate. +HBr You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. If the 1,2- and 1,4- addition products are the same due to symmetry, only draw one structure. Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Separate multiple products using the +...
Give the structures of both of the 1,2 and 1,4 intermediates and products for the reaction...
Give the structures of both of the 1,2 and 1,4 intermediates and products for the reaction of 1 equivalent of HBr with 2,3-dimethyl-1,3-cyclohexadiene
write major products for following reaction. (write only one product unless it has both a 1,2...
write major products for following reaction. (write only one
product unless it has both a 1,2 and a 1,4 product). when indicated
show mechanism and circle correct stereochemistry of the major
product. label examples of a kinetic and thermodynamic
product.
f. (E)-3-methyl-2-pentene + HBr with tr. peroxide **** Show Mechanism: th Major Product(s) of f. Stereochemistry of the product of the reaction described in f. (Circle one) a. R b. S c. E d. Z e. a mixture of E...
Give the 1,2 addition product and the 1,4 addition product from the MOST SUBSTITUTED double bond....
Give the 1,2 addition product and the 1,4 addition product from
the MOST SUBSTITUTED double bond.
HBr CH2Cl2, 80oC H2SO4 Na CH2Cl2, 20°C. Br2 CH2Cl2, 60°C 1,2 addtion product 1,2 addtion product 1,2 addtion product 1,4 addtion product 1,4 addition product 1,4 addtion product
4. What is the IUPAC name for the following A. (2E, 42)-2,4-hexadiene B. (2E, 4Z)-1,4-dimethyl-1,3-butadiene C....
4. What is the IUPAC name for the following A. (2E, 42)-2,4-hexadiene B. (2E, 4Z)-1,4-dimethyl-1,3-butadiene C. (2z, 42)-1,4-dimethyl-1,3-butadiene D. (22, 42)-2,4-hexadiene E. None of these Predict the product for the following reaction. нгон-1400C 5. A. propene B. diethyl ether C. 1-hexanol D. 1-propoxypropane 6. Which one of the following represents the lowest energy D-bonding molecular orbital of 1,3- butadiene? IV 7. A thermodynamically-controlled reaction will yield: A) the most stable product. B) C) the product that can be formed in...
5. a) Draw the major 1,2-addition product and the major 1,4-addition product of each of the...
5. a) Draw the major 1,2-addition product and the major 1,4-addition product of each of the following reactions. Label each product as either the 1,2-addition product or 1,4-addition product and as either the thermodynamic or kinetic product. (12 pts) H" catalyst H catalyst b) Consider the reaction of a nucleophile with conjugated carbonyl. Provide an example of a nucleophile that would favor the 1,2-addition product and explain why. Provide an example of a nucleophile that would favor the 1,4-addition product...
E. Just as with isolated alkenes, electrophilic addition of H-X occurs with conjugated dienes. The electron...
E. Just as with isolated alkenes, electrophilic addition of H-X occurs with conjugated dienes. The electron pushing mechanisms are the same. Often, two products are formed: 1,2-addition and 1,4-addition products. For the reaction below, provide a detailed mechanism which explains the formation of the two products. Label each product as 1,2-addition and 1,4-addition. Show all electron movement with arrows and all intermediates. Which product will predominate at -80 °C and at 40 °C. HBr 1,2 ohin PNC Bmed at -60C...
ASAP 6.(8) a. The 1,2 addition product of the reaction is shown. Draw the 1,4 addition...
ASAP
6.(8) a. The 1,2 addition product of the reaction is shown. Draw the 1,4 addition product. HBr 1,2 1,4 b. Which is more stable? Circle one: the 1,2 product, the 1.4 product. c. Which product is favored at low temperatures? Circle one: the 1.2 product, the 14 product d. "The proximity effect is used to account for the formation of which product? Circle one: the 1,2 product, the 1.4 product. 7. (5) The pesticide chlordane, sold starting in 1948,...
What is the major product of the following reaction? (1,2 vs 1,4 addition) HCl 40°C CI...
What is the major product of the following reaction? (1,2 vs 1,4 addition) HCl 40°C CI OCI
Draw the major 1,2- and 1,4-addition products obtained in the reaction shown. Assume that both are derived from the most stable carbocation intermediate. +HBr You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. If the 1,2- and 1,4- addition products are the same due to symmetry, only draw one structure. Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Separate multiple products using the +...
write major products for following reaction. (write only one
product unless it has both a 1,2 and a 1,4 product). when indicated
show mechanism and circle correct stereochemistry of the major
product. label examples of a kinetic and thermodynamic
product.
f. (E)-3-methyl-2-pentene + HBr with tr. peroxide **** Show Mechanism: th Major Product(s) of f. Stereochemistry of the product of the reaction described in f. (Circle one) a. R b. S c. E d. Z e. a mixture of E...
Give the 1,2 addition product and the 1,4 addition product from
the MOST SUBSTITUTED double bond.
HBr CH2Cl2, 80oC H2SO4 Na CH2Cl2, 20°C. Br2 CH2Cl2, 60°C 1,2 addtion product 1,2 addtion product 1,2 addtion product 1,4 addtion product 1,4 addition product 1,4 addtion product
4. What is the IUPAC name for the following A. (2E, 42)-2,4-hexadiene B. (2E, 4Z)-1,4-dimethyl-1,3-butadiene C. (2z, 42)-1,4-dimethyl-1,3-butadiene D. (22, 42)-2,4-hexadiene E. None of these Predict the product for the following reaction. нгон-1400C 5. A. propene B. diethyl ether C. 1-hexanol D. 1-propoxypropane 6. Which one of the following represents the lowest energy D-bonding molecular orbital of 1,3- butadiene? IV 7. A thermodynamically-controlled reaction will yield: A) the most stable product. B) C) the product that can be formed in...
5. a) Draw the major 1,2-addition product and the major 1,4-addition product of each of the following reactions. Label each product as either the 1,2-addition product or 1,4-addition product and as either the thermodynamic or kinetic product. (12 pts) H" catalyst H catalyst b) Consider the reaction of a nucleophile with conjugated carbonyl. Provide an example of a nucleophile that would favor the 1,2-addition product and explain why. Provide an example of a nucleophile that would favor the 1,4-addition product...
E. Just as with isolated alkenes, electrophilic addition of H-X occurs with conjugated dienes. The electron pushing mechanisms are the same. Often, two products are formed: 1,2-addition and 1,4-addition products. For the reaction below, provide a detailed mechanism which explains the formation of the two products. Label each product as 1,2-addition and 1,4-addition. Show all electron movement with arrows and all intermediates. Which product will predominate at -80 °C and at 40 °C. HBr 1,2 ohin PNC Bmed at -60C...
ASAP
6.(8) a. The 1,2 addition product of the reaction is shown. Draw the 1,4 addition product. HBr 1,2 1,4 b. Which is more stable? Circle one: the 1,2 product, the 1.4 product. c. Which product is favored at low temperatures? Circle one: the 1.2 product, the 14 product d. "The proximity effect is used to account for the formation of which product? Circle one: the 1,2 product, the 1.4 product. 7. (5) The pesticide chlordane, sold starting in 1948,...
What is the major product of the following reaction? (1,2 vs 1,4 addition) HCl 40°C CI OCI
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