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- Please Answer Question 3 Thank You 1 (134.26 KiB) Viewed 10 times
Please answer question 3 thank you!
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Please answer question 3 thank you!
Please answer question 3
thank you!
Question 3. a) An E2 reaction will occur when the beta hydrogen and the leaving group are anti-coplanar. In the following reaction only one tetrasubstituted alkene is produced. Complete the wedge and dash drawing (structure B) and draw the tetrasubstituted final product (structure C). 1 mark for correctly adding groups to the middle diagram. 1 mark for correct alkene. CH3 CH3 Br Br CH₂ONa CH3OH Br CH3 complete by adding substituents with correct stereochemistry b) Draw the substitution product produced in the following two-step reaction. The nucleophile selectively reacts once in each step. Is the product optically active? 1 mark for correct substitution. Use dashes and wedges to show stereochemistry. 1 mark Would a solution of the product be optically active? 1. KCN (1 equiv.), DMSO 2. CH3CH₂ONA, CH₂CH₂OH Br 1. NaN3 (1 equiv.), DMF OSO₂CF3 2. CH₂SH complete by adding substituents with correct stereochemistry major product(s) Would a solution of the resulting mixture be optically active? Yes c) Draw the substitution products for the following two step reaction. The nucleophile selectively reacts once in each step. Is the resulting product chiral or achiral? 1 mark for correct substitution products. Use dashes and wedges to show stereochemistry. 1 mark Would a solution of the resulting mixture be optically active. No major product(s) Would a solution of the resulting mixture be optically active? Yes No
thank you!
Question 3. a) An E2 reaction will occur when the beta hydrogen and the leaving group are anti-coplanar. In the following reaction only one tetrasubstituted alkene is produced. Complete the wedge and dash drawing (structure B) and draw the tetrasubstituted final product (structure C). 1 mark for correctly adding groups to the middle diagram. 1 mark for correct alkene. CH3 CH3 Br Br CH₂ONa CH3OH Br CH3 complete by adding substituents with correct stereochemistry b) Draw the substitution product produced in the following two-step reaction. The nucleophile selectively reacts once in each step. Is the product optically active? 1 mark for correct substitution. Use dashes and wedges to show stereochemistry. 1 mark Would a solution of the product be optically active? 1. KCN (1 equiv.), DMSO 2. CH3CH₂ONA, CH₂CH₂OH Br 1. NaN3 (1 equiv.), DMF OSO₂CF3 2. CH₂SH complete by adding substituents with correct stereochemistry major product(s) Would a solution of the resulting mixture be optically active? Yes c) Draw the substitution products for the following two step reaction. The nucleophile selectively reacts once in each step. Is the resulting product chiral or achiral? 1 mark for correct substitution products. Use dashes and wedges to show stereochemistry. 1 mark Would a solution of the resulting mixture be optically active. No major product(s) Would a solution of the resulting mixture be optically active? Yes No