Syntheses of 3,5-Dimethylspiro[5.5]undeca-2,4-diene-1,8-dione and 7,11-Dimethylspiro[5.5]undeca-7,10-diene-2,9-dione
作者:Kalyan Kumar Bhattagharya、Parimal Krishna Sen
DOI:10.1246/bcsj.52.2173
日期:1979.7
Syntheses of 1-diazo-5-(2-hydroxy-4,6-dimethylphenyl)-2-pentanone and 1-diazo-5-(4-hydroxy-2,6-dimethylphenyl)-2-pentanone and their acid catalysed spiroannulation to 3,5-dimethylspiro[5.5]undeca-2,4-diene-1,8-dione and 7,11-dimethylspiro[5.5]undeca-7,10-diene-2,9-dione respectively via Ar1-6 participation are described. Succinylation of 3,5-dimethylanisole is also discussed.
描述了1-重氮-5-(2-羟基-4,6-二甲基苯基)-2-戊酮和1-重氮-5-(4-羟基-2,6-二甲基苯基)-2-戊酮的合成,以及它们通过Ar1-6参与分别与酸催化下的螺环化反应生成3,5-二甲基螺[5.5]十一碳-2,4-二烯-1,8-二酮和7,11-二甲基螺[5.5]十一碳-7,10-二烯-2,9-二酮。还讨论了3,5-二甲基苯甲醚的琥珀酰化反应。