Cycloaddition von phenylarsinen an pentadiin-1,4-one-3 und 3-methylenpentadiine-1,4
作者:G. Märkl、H. Hauptmann
DOI:10.1016/0040-4020(76)85123-x
日期:1976.1
The radicalic cycloaddition of phenylarsine and trimethylsilylsubstituted phenylarsines to pentadiyn-1,4-ones-3 yields the 2-methylene-arsolene-4-ones-3; these ketones react with diphenylketene to give the substituted 2,3-bis-methylene-arsolenes-4, which undergo thermal electrocyclic reactions. The resulting benzannelated arsolenes are dehydrogenated to the corresponding arsoles, which can be isolated
苯基ar和三甲基甲硅烷基取代的苯基ar与戊二炔-1,4-ones-3的自由基环加成反应生成2-亚甲基-芳基-4-ones-3;这些酮与二苯乙烯酮反应,生成取代的2,3-双亚甲基-芳烃-4,然后进行热电循环反应。将所得的苯甲酰化的芳烃脱氢成相应的芳烃,其可以通过使苯基ar与3-二苯基亚甲基-戊二炔-1,4-直接反应来分离。