第一部份:2-苯胺基-1,4-二奈昆的鹵化反應 氯 化銅,溴化銅與芳香族化合物的鹵化反應,是一已知的反應. 本部份要介紹的是2-苯胺基-1,4-二奈昆與氯化銅,溴化銅的親 電性取代反應,在此我們將就反應的速率,位向做探討. 第二部份: 5-苯基戊烯的自由基反應 近年來,自由基在有機合成上應 用已逐漸受到重視,尤其是自由基 在環化時所表現的位向與立體選 擇性往往為化學家所感興趣. 這個部份是利用對甲苯亞磺酸 鈉鹽在酸性下,產生風基自由基,進行自由 基的加成環化反應.在 此我們將就反應取代基及溶劑對反應的影響做進一步的探討. PART(I):Halogenation of 2-Anili no-1,4-Naphthoquinoes With Coppe r (II)Halids I t has been known that aromatic c ompounds can be halogented with copper chloride and copper bro mide. In this part,The el ectrophilic substitution reactio n of 2-anilino-1,4-naphthoquinoe s with copper chloride and cop per bromide was studied.The effe ct of substituents on reaction rate and regioselection was des cribed. PART(II):5-Phenylpentene s In Free Radical Reactions Recently there has been a growin g interest in the applications o f radical reactions in organic synthesis.Ring formation by fre e radical cyclization reaction h as attracted particular intere st and this cyclization reaction frequently occurs with high,pre dicatable,regio- and stereoselec tivity. In this part,we described our results on additi on-cyclization reaction of sulfo nyl radical generated from sod ium p-toluenesulfinate in acidic aqueous with olefins.The solven t effect and substituent effect were studied.
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