14D_f09_e01

14D_f09_e01 - Chemistry 14D Fall 2009 Exam 1 Page 1 OK to...

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Exam 1 Page 1 Page 1 score = OK to use ‘Ph’ anywhere on this exam where appropriate. 1. (8) Complete the following S N 2 reaction by drawing the curved arrows, and finish the transition state and product drawings. 2. (14) What happens to the reaction rate when the following changes are made to the reaction of question 1? Write ‘faster’, ‘slower’, or ‘no significant change’ in each blank. The changes are not cumulative . (a) C 6 H 5 S - changed to C 6 F 5 S - : _________________________ (b) C 6 H 5 S - changed to CH 3 S - :_________________________ (c) CH 3 of electrophile changed to (CH 3 ) 3 C: _________________________ (d) CH 3 OH changed to (CH 3 ) 3 COH: _________________________ (e) CH 3 OH changed to acetone: _________________________ (f) I changed to Cl: _________________________ (g) Alkene changed to alkane: _________________________ 3. (7) Circle the better leaving group: Leaving group A Leaving group B Complete these two distinctly different reasons for your choice, by adding no more than twenty words in each case. Reason #1 : This is the better leaving group because. .. Reason #2 : This is the better leaving group because. .. 4.
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This note was uploaded on 03/12/2012 for the course CHEM 14D taught by Professor Hardinger during the Winter '08 term at UCLA.

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14D_f09_e01 - Chemistry 14D Fall 2009 Exam 1 Page 1 OK to...

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