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有机化学
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有机化学 ›› 2007, Vol. 27 ›› Issue (9): 1147-1149. 上一篇    下一篇

研究简报

可膨胀石墨催化合成3,3,6,6-四甲基-9-芳基-1,2,3,4,5,6,7,8-八氢化氧杂蒽-1,8-二酮

张英群*，王春，马晶军，高月华，耿庆芬
唐然肖，高勇军   

  1. (河北农业大学理学院 保定 071001)
  • 收稿日期:2006-08-21 修回日期:2007-01-24 发布日期:2007-08-30
  • 通讯作者: 张英群

Synthesis of 3,3,6,6-Tetramethyl-9-aryl-1,2,3,4,5,6,7,8-octahydro xanthene-1,8-dione Catalyzed by Expansible Graphite

ZHANG Ying-Qun*,WANG Chun,MA Jing-Jun,GAO Yue-Hua
GENG Qing-Fen,TANG Ran-Xiao,GAO Yong-Jun   

  1. (College of Science, Agricultural University of Hebei, Baoding 071001)
  • Received:2006-08-21 Revised:2007-01-24 Published:2007-08-30
  • Contact: 张英群

PDF

753

被引次数

21

在可膨胀石墨催化下, 由芳香醛和5,5-二甲基-1,3-环己二酮缩合制备了3,3,6,6-四甲基-9-芳基-1,2,3,4,5,6,7,8-八氢化氧杂蒽-1,8-二酮. 在乙醇-水介质中回流反应2.5 h, 反应产率可达87%～93%. 该方法不仅反应时间短, 产率高, 而且催化剂价廉易得、对环境友好, 催化剂经简单过滤后可重复使用.

关键词: 可膨胀石墨, 芳香醛, 9-芳基-1,2,3,4,5,6,7,8-八氢化氧杂蒽-1,8-二酮, 5,5-二甲基-1,3-环己二酮

A novel synthesis of 3,3,6,6-tetramethyl-9-aryl-1,2,3,4,5,6,7,8-octahydroxanthene-1,8-dione via condensation of aromatic aldehydes with 5,5-dimethyl-1,3-cyclohexanedione using expansible graphite as catalyst was described. The reaction time was 2.5 h, and the yield ranged from 87% to 93%. The catalyst was inexpensiv eand environmental friendly, and could be recovered by filtration.

Key words: 5,5-dimethyl-1,3-cyclohexanedione, 9-aryl-1,2,3,4,5,6, 7,8-octahydroxanthene-1,8-dione, aromatic aldehyde, expansible graphite