這是實驗的兩張IR圖 第一張是cis-norbornene-5,6-endo-dicarboxylic acid http://www.badongo.com/pic/6135902 第二張是compound X 講義的描述是說,它是cis-norbornene-5,6-endo-dicarboxylic acid的isomer http://www.badongo.com/pic/6135936 (圖不是很清楚,請見諒= =) 問題是: 1. compound X 是cis-norbornene-5,6-endo-dicarboxylic acid和硫酸反應後的isomer 他問說:what intermediate is formed when the diacid dissolves in H2SO4? 2. what formulas for possible structures of X and devise test to distinguish among them. 3. what functional group is present in X and is not found in the diacid as determined by an analysis of the IR? 這是實驗前的問題,實驗是Diels-Alder反應的後半部,同學間弄不出答案,去問過老師, 老師也研究了很久,沒有結論= = 有人會嗎?? 可以幫幫忙嗎??感謝^^ --

※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 220.139.132.208 ※ 編輯: aurora14 來自: 220.139.132.208 (06/02 20:55)