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應某人的要求 就把考題Po出來了 不過有些分子結構沒辦法畫 就只好省略了 Organic Chemistry III First examination, October 25, 2002 1, Give all evidence you know to prove the existence of benzyme intermediate. 2, Briefly discuss addition-elimination reactions you have learned in this course. 3, Briefly discuss how you would prepare 1-acetyl- and 2-acetylnaphthlene, respectively. 4, Briefly discuss [2+2] cycloadditions you have learned in this course. 5, Briefly discuss the regioselectivity of 1,3-dipolar cycloadditions in terms of frontier orbital interaction. 6, Give the mechanism of the following transformations. (Five) 7, Answer the following questions: (a) What is the property and the usage of Meldrum's acid (structure)? (b) What is the "endo rule" for Diels-Alder reaction and how would you account for it? -- ※ 發信站: 批踢踢實業坊(ptt.csie.ntu.edu.tw) ◆ From: 61.30.64.84