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0771-Exam-0A-answers-KEY - Friday CHM 2211-0771-Sample...

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Friday, January 28, 2011 CHM 2211-0771- Sample Exam #0 Form A Answer Page 1 of 2 Answer sheet pts. Please LAST PRINT NAME: First name: UFID: /100 Put your answers in the spaces, or check your answer 1. ( 6 pts ) IUPAC names (with stereochemistry where relevant). CO 2 H O ( Z )-4-hexenal CH=O 2-oxocyclohexanecarboxylic acid _____ 2. ( 10 pts ) (a) Reagent 1 , (b) reagent 2 to obtain cyclopropane products. (c) Complete the product structures. H + CHCl 3 (b) Reagent 2 (a) Reagent 1 C (c) Products: Ph H Et + C H H Ph Et H H Ph Et Cl Cl Cl Cl t -BuOK + (d) The relative configuration (position of substituents) in the alkene and in the products is _ trans _____. (e) With respect to stereochemistry , the reaction is said to be stereo__ specific _ (complete the term). (f) Both products are formed in equal amounts, £ਿ in unequal amounts. (g) Both products are enantiomers, £ਿ diastereomers, £ਿ anomers, £ਿ meso compounds. [Only full credit for (f) and (g): Answers to (f) and (g) must be correct and consistent] 3. ( 12 pts ) (a)(c) With charges. (c) Show C-nucleophile. (e) Complete structure of
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