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2 This question deals with some organic reaction mechanisms. (a) This question concerns some organic elimination reaction mechanisms. Racemic stilbene dichloride A (one enantiomer is shown) on heating with pyridine undergoes an elimination reaction to form product B. Meso-stilbene dichloride C does not undergo an elimination reaction as readily under the same conditions. Explain these results using saw-horse projections and draw mechanisms with them. Ph. H Pyridine A B Ph Pyridine H CI A Ph. H A No Reaction. CI CI Pyridine H Ph (b) (c) (d) What is the role of the pyridine in this reaction? What type of elimination reaction is this? What type of transition state does this reaction require to proceed? (e) What word describes the bond breaking and bond forming in this reaction?

2 This question deals with some organic reaction mechanisms. (a) This question concerns some organic elimination reaction mechanisms. Racemic stilbene dichloride A (one enantiomer is shown) on heating with pyridine undergoes an elimination reaction to form product B. Meso-stilbene dichloride C does not undergo an elimination reaction as readily under the same conditions. Explain these results using saw-horse projections and draw mechanisms with them. Ph. H Pyridine A B Ph Pyridine H CI A Ph. H A No Reaction. CI CI Pyridine H Ph (b) (c) (d) What is the role of the pyridine in this reaction? What type of elimination reaction is this? What type of transition state does this reaction require to proceed? (e) What word describes the bond breaking and bond forming in this reaction?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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2 This question deals with some organic reaction mechanisms. (a) This question concerns some organic elimination reaction mechanisms. Racemic stilbene dichloride A (one enantiomer is shown) on heating with pyridine undergoes an elimination reaction to form product B. Meso-stilbene dichloride C does not undergo an elimination reaction as readily under the same conditions. Explain these results using saw-horse projections and draw mechanisms with them. Ph. H Pyridine A B Ph Pyridine H CI A Ph. H A No Reaction. CI CI Pyridine H Ph (b) (c) (d) What is the role of the pyridine in this reaction? What type of elimination reaction is this? What type of transition state does this reaction require to proceed? (e) What word describes the bond breaking and bond forming in this reaction?
Transcribed Image Text:2 This question deals with some organic reaction mechanisms. (a) This question concerns some organic elimination reaction mechanisms. Racemic stilbene dichloride A (one enantiomer is shown) on heating with pyridine undergoes an elimination reaction to form product B. Meso-stilbene dichloride C does not undergo an elimination reaction as readily under the same conditions. Explain these results using saw-horse projections and draw mechanisms with them. Ph. H Pyridine A B Ph Pyridine H CI A Ph. H A No Reaction. CI CI Pyridine H Ph (b) (c) (d) What is the role of the pyridine in this reaction? What type of elimination reaction is this? What type of transition state does this reaction require to proceed? (e) What word describes the bond breaking and bond forming in this reaction?
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