西北农林科技大学全英有机化课程试卷2014西北农林科技大学全英有机化学课程试卷2014西北农林科技大学全英有机化学课程试卷2014西北农林科技大学全英有机化学课程试卷2014.doc

西北农林科技大学本科课程考试试专业年级：命题教师：审题教师： 考试成绩 考生姓名： 学号： DIRECTIONS- Please answers all questions on the answer sheet provided as completely and clearly as possible. Show all your work for the writing portions of the exam. Part I - NOMENCLATURE (3 points each, 24 points in all) SCORE Give the correct IUPAC name (BOTH IN CHINESE AND ENGLISH) or molecular structure for each of the compounds BELOW. (Note the configuration if there any). 1. 2. 3. 4. 5. 6. (2S,3R)-2,3,4-Trihydroxybutanal 7. cis-1,2-Dibromocyclopentane 8. Tetraethylammonium iodide Part II -MULTIPLE CHOICE (2 point each, 40 points in all) SCORE For each of the questions below, circle the letter corresponding to the most correct answer(s) Which of the following is aromatic? Which of the following is the strongest base? A. B. C. D. What is the IUPAC name for the following compound? A. diethylcyclohexane B. 1,3-diethylcyclohexane C. cis-1,3-diethylcyclohexane D. trans-1,3-diethylcyclohexane Which is the highest priority group for the substituents shown below, according to the “E-Z” sequence rules: a. b. c. d. Rank the following groups in order of increasing activating power in electrophilic aromatic substitution reactions: I) -NHCH3 II) -COCH2CH3 III) -CH2CH3 IV) –Cl A) I IIIIV II; B) IVIIIIII; C) IIIIVIII; D) IIIIIIIV; E) none of these In the dehydrohalogenation shown below, which hydrogen atom (proton) is preferentially abstracted? Which of the following dienes cannot be used as the diene component in Diels Alder Reaction? Reaction of an unknown compound with acidic potassium permanganate yields a carboxylic acid and CO2; the unknown compound is: A. a tetra-substituted alkene; B. a disubstituted alkyne; C. a tri-substituted alkene; D. a terminal alkene with one alkyl substituent; E. a trans-disubsti