MA 138 Midterm: MA 138 UKY Answer Key Exam 3 S12
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Use scratch paper at the back of the exam to work out answers. Final answers must be recorded at the proper place on the exam itself for credit. Print your name and id # on each page. Please keep your paper covered and your eyes on your own work. Academic misconduct will lead to failure in the course: (10 pts. ) Consider the benzyl cation and anion shown below. For each, write another resonance structure which shows charge delocalization into the substituent group. Give a specific example of each of the following. Don"t use r groups: synthesis of a grignard reagent, a compound that has strong absorption in the ultraviolet-visible region of the spectrum, a carbene (show all lone pairs, two enantiomers of an allene. Circle the correct structure. (a) the strongest acid. O (c) the most reactive diene in a diels-alder reaction with methyl vinyl ketone.
