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6/ Consider the ring opening of 1.3-cyclohexadiene to give 1,3,5-hexatriene. Draw the appropriate...
Question 7 (16 pts) For the following electrocyclic ring closure reaction heat CF3 a) Given the c...
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Question 7 (16 pts) For the following electrocyclic ring closure reaction heat CF3 a) Given the curved arrow-pushing, draw the product. Pay particular attention to stereochemistry and indicate any racemic mixtures. b) Give the number of electrons involved in the reaction o) Does the allowed rection proceed via a Huckel or a Mobius transition state? d) Is the allowed reaction a conrotatory or disrotatory ring closure?
Question 7 (16 pts) For the following electrocyclic ring closure reaction...
Critical Thinking Questions 1. Draw the structure for the product from the reaction of 1,3-cyclohexadiene and...
Critical Thinking Questions 1. Draw the structure for the product from the reaction of 1,3-cyclohexadiene and maleic acid (cis-2-butenedioic acid). 2. What is the product expected from the reaction of 1,3-butadiene and 3-sulfolene? Why is this not a major concern as a by-product? Part B, the dimer dicyclopentadiene is a possible contaminant of cyclopentadi- ene. It is also a diene. Can dicyclopentadiene undergo reaction with cyclopentadi- ene? Can dicyclopentadiene act as a diene and undergo reaction with the anhydride 3....
Question 6 (22 pts). For the following electrocyclic ring-opening reaction a) Give the product, including stereochemistry...
Question 6 (22 pts). For the following electrocyclic ring-opening reaction a) Give the product, including stereochemistry and draw the curved arrow-pushing that describes bond making/breaking CH heat CH3 b) give the number of electrons involved in the reaction c) For the number of electrons you gave in the answer to b) above, would that many electrons in a Huckel loop be aromatic, nonaromatic or antiaromatic? d) For the number of electrons you gave in the answer to b) above, would...
Question 6 (22 pts). For the following electrocyclic ring-opening reaction a) Give the product, including stereochemistry...
Question 6 (22 pts). For the following electrocyclic ring-opening reaction a) Give the product, including stereochemistry and draw the curved arrow-pushing that describes bond making/breaking CH3 heat CHE b) give the number of electrons involved in the reaction C) For the number of electrons you gave in the answer to b) above, would that many electrons in a Huckel loop be aromatic, nonaromatic or antiaromatic? d) For the number of electrons you gave in the answer to b) above, would...
PLEASE ANSWER ALL QUESTIONS Uraw the organic products expected from this reaction, label them as thermodynamic...
PLEASE ANSWER ALL QUESTIONS
Uraw the organic products expected from this reaction, label them as thermodynamic or kinetic and tell which predominates at -80°C. H(cat.) носно 5) Show how the reaction of an allylic halide with a Grignard reagent might be used to synthesize the following: 6) Which substrate would react most rapidly in an SN 2 reaction? A) CH3CH2CH=CHCH2Br B) BrCH2CH2CH=CHCH3 C) CH3CHBECH-CH2CH3 D) CH3CH2CH2CH=CHB 7) Which of the following terms best describes a Diels-Alder reaction? A) a [4+2]...
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Question 7 (16 pts) For the following electrocyclic ring closure reaction heat CF3 a) Given the curved arrow-pushing, draw the product. Pay particular attention to stereochemistry and indicate any racemic mixtures. b) Give the number of electrons involved in the reaction o) Does the allowed rection proceed via a Huckel or a Mobius transition state? d) Is the allowed reaction a conrotatory or disrotatory ring closure?
Question 7 (16 pts) For the following electrocyclic ring closure reaction...
Critical Thinking Questions 1. Draw the structure for the product from the reaction of 1,3-cyclohexadiene and maleic acid (cis-2-butenedioic acid). 2. What is the product expected from the reaction of 1,3-butadiene and 3-sulfolene? Why is this not a major concern as a by-product? Part B, the dimer dicyclopentadiene is a possible contaminant of cyclopentadi- ene. It is also a diene. Can dicyclopentadiene undergo reaction with cyclopentadi- ene? Can dicyclopentadiene act as a diene and undergo reaction with the anhydride 3....
Question 6 (22 pts). For the following electrocyclic ring-opening reaction a) Give the product, including stereochemistry and draw the curved arrow-pushing that describes bond making/breaking CH heat CH3 b) give the number of electrons involved in the reaction c) For the number of electrons you gave in the answer to b) above, would that many electrons in a Huckel loop be aromatic, nonaromatic or antiaromatic? d) For the number of electrons you gave in the answer to b) above, would...
Question 6 (22 pts). For the following electrocyclic ring-opening reaction a) Give the product, including stereochemistry and draw the curved arrow-pushing that describes bond making/breaking CH3 heat CHE b) give the number of electrons involved in the reaction C) For the number of electrons you gave in the answer to b) above, would that many electrons in a Huckel loop be aromatic, nonaromatic or antiaromatic? d) For the number of electrons you gave in the answer to b) above, would...
PLEASE ANSWER ALL QUESTIONS
Uraw the organic products expected from this reaction, label them as thermodynamic or kinetic and tell which predominates at -80°C. H(cat.) носно 5) Show how the reaction of an allylic halide with a Grignard reagent might be used to synthesize the following: 6) Which substrate would react most rapidly in an SN 2 reaction? A) CH3CH2CH=CHCH2Br B) BrCH2CH2CH=CHCH3 C) CH3CHBECH-CH2CH3 D) CH3CH2CH2CH=CHB 7) Which of the following terms best describes a Diels-Alder reaction? A) a [4+2]...
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