| 摘要: | 本論文主要在討論有關於給電子基不對稱單取代之6-(4-Methoxyphenyl)fulvene和6-(1’,1’-Diethylmethyl)-
fulvene與8,8-Dicyanoheptafulvene 進行室溫分子間〔m+n〕環化加成反應研究;對其進行環化加成反應之相互之間的反應性、立體選擇性（Diastereoselectivity）、位置選擇性（Periselectivity）和位向選擇性（Regioselectivity），有進一步徹底而詳細的研究探討。
實驗使用 1H-NMR ，COSY， NOESY， E.I.M.S.， H.E.I.M.S.來判定。結果顯示，在室溫的溫和反應條件下， 8,8-Dicyanoheptafulvene和給電子基不對稱單取代之 6-(1’,1’-Diethylmethyl)fulvene 反應，會有〔8+2〕與〔4+2〕反應。在〔8+2〕反應則會顯示出百分之百立體選擇性和反向（anti），在〔4+2〕反應則會顯示出百分之百立體選擇性和同向（Syn）。〔8+2〕：〔4+2〕比例約為 1:1。 8,8-Dicyanoheptafulvene 和給電子基不對稱單取代之 6-(4-Methoxyphenyl)fulvene 反應，，進行〔8+2〕與〔6+4〕環化加成反應 ；〔8+2〕：〔6+4〕比例約為 1:4。
The investigation of this research involves the synthesis and intermolecular [m+n] cycloadditions of the unsymmetrically electron-rich 6-(1,1-Diethylmethyl)fulvene and 6-(4-methoxyphenyl)fulvene with 8,8-dicyaoheptafulvene; designed to establish the experimental analyses of the reactivity, diastereoselectivity, periselectivity, and regioselectivity of these cycloadditions.
The experiment uses 1H-NMR, COSY, NOESY, E.I.M.S., H.E.I.M.S.À is judged . The result shows, under the gentle response condition of the room temperature, 8,8-Dicyanoheptafulvene to be 6 - (1', 1' - Diethylmethyl)fulvene react , have [8+2 ] with [4+2 ] react. In [8+2] is it can demonstrate the a hundred per cent three-dimensional alternative and reverse (Anti) to react, and with to ( Syn ) in [4+2] is it can demonstrate the a hundred per cent three-dimensional alternative to react. [8+2] : [4+2] in a ratio of about 1:1. The cycloaddition reaction of 8,8-Dicyanoheptafulvene with 6-(4-Methoxyphenyl)fulvene at room temperature gave the [8+2] : [6+4] in a ratio of about 1:4. |
