Ozonolysis of 2-endo-7-anti-diacylnorbornenes. A new entry for the synthesis of 2,4,6,13-tetraoxapentacyclo[5.5.1.03,11.05,9.08,12]tridecanes
作者:Hsien-Jen Wu、Jyh-Haur Chern、Chung-Yi Wu
DOI:10.1016/s0040-4020(96)01188-x
日期:1997.2
A new route for the synthesis of the title compounds 4a, 4b, 10a, and 10b has been developed via ozonolysis of 2-endo-7-anti-diacylnorbornenes 3a, 3b, 9a, and 9b. The synthesis of the unsubstituted (parent) compound 4a of tetraacetal tetraoxa-cages has been accomplished for the first time by this new entry. Ozonolysis reactions of 3a, 3b, and 9a were also performed in CDCl3 for understanding the final
通过2-内-7-抗-二酰基降冰片烯3a,3b,9a和9b的臭氧分解,已经开发了合成标题化合物4a,4b,10a和10b的新途径。四缩醛四氧杂笼的未取代的(母体)化合物4a的合成首次通过该新条目完成。在CDCl 3中也进行了3a,3b和9a的臭氧分解反应,以了解最终的臭氧化合物结构和臭氧化学反应。CH 2 Cl 2中3a,3b和9a的臭氧分解在-78°C下进行三乙胺处理,为最终的臭氧化物11a,11b和14的结构提供了间接支持。