- 作者: 陳中冰; 廖俊臣; 林和盛
- 作者服務機構: 清華大學化學研究所
- 中文摘要: 本文敘述 5,6-苯駢-, 5,6- 二苯基-及 5,6- 二甲酸甲酯基-1,4- 二丙基螺旋〔雙環[2.2.2]辛 -5-烯 -2,2'-[1,3]- 二氧伍圜〕 -3,4'- 二酮(lla, 11b及llc)的製備和直接照光反應,前二者產生雙環【2.2.1] 庚 -2-烯衍生物12a及12b,產率均約 65%,而後者生成雙環 [4,1,0]庚 -2- 烯衍生物15,產率為73%,產物的構造由其光譜數據及化學反應決定之,其光化學反應機構亦加以討論。
- 英文摘要: The preparation and direct irradiation of 5,6-benzo-, 5,6-diphenyl and 5,6-dicarbomethoxy-1,4-dipropylspiro [bicyclo【2.2.2] -oct-5-ene-2,2’-[1,3] dioxolane]-3,4'-dione (11a, llb and llc respectively)are described. The former two compounds afford bicyclo【2.2.1】hept-2-ene derivatives 12a and 12b respec-tively in ca. 65% yield, in contrast, the latter compund produces bicyclo【2.1.0] hept-2-ene derivative 15 in73% yield. The structures of the products are established from spectroscopic data and chemical transforma-tions. The mechanisms for these photochemical reactions are also discussed.
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