A simple synthesis of ð??¸-9-aryl-5-arylidene-1-oxo-1,2,3,4,5,6,7, 8-octahydroxanthenes and their lower analogues from ð??¸, ð??¸-ð?›¼,ð?›¼'-diarylidenecycloalkanones

Journal of Chemical Sciences

Asok K Mallik1¹  Arpita Das Gupta¹  Swati Samanta¹  Rina Mondal¹ 

[1] Department of Chemistry, Jadavpur University, Kolkata 700 032, India$$

关键词: Cyclocondensation;    amberlyst-15;    ð??¸;    ð??¸-ð?›¼;    ð?›¼'-diarylidenecycloalkanones;    xanthene derivatives and their lower analogues.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

A simple and efficient synthesis of 𝐸-9-aryl-5-arylidene-1-oxo-1,2,3,4,5,6,7,8-octahydroxanthenes and their lower analogues has been developed by amberlyst-15 catalysed cyclocondensation of 𝐸,𝐸-𝛼,𝛼'-diarylidenecyclohexanones and 𝐸,𝐸-𝛼,𝛼'-diarylidenecyclopentanones, respectively, with cyclohexan-1,3-diones. The products were obtained in moderate to good yield and their structures were confirmed from analytical and spectral data.

【 授权许可】

Unknown