Chin. J. Org. Chem. ›› 2003, Vol. 23 ›› Issue (7): 694-696. Previous Articles     Next Articles

水溶剂中芳醛与5,5-二甲基-1,3-环己二酮的反应

史达清;庄启亚;陈景;王香善;屠树江;胡宏纹   

  1. 徐州师范大学化学系;南京大学化学系
  • 发布日期:2003-07-25

Reaction of Aromation Aldehydes with 5,5-Diemthyl-1,3- cyclohexandione in Water

Shi Daqing;Zhuang Qiya;Chen Jing;Wang Xiangshan;Tu Shujiang;Hu Hongwen   

  1. Department of Chemistry, Xuzhou Normal University;Department of Chemistry, Nanjing University
  • Published:2003-07-25

The environmental friendly reaction of aromatic aldehydes with 5,5- dimethyl-l, 3-cyclohexandione giving 2,2'-arylmethylene bis(3-hydroxy-5, 5-dimethyl-2-cyclohexene-l-one) (3) was carried out in water in the presence of trienthylbenzylammonium chloride (TEBA) . While TsOH existed in the reaction, 3,3, 6,6-tetramethyl-9-aryl-l, 8- dioxooctahydroxanthene (4) or 3,3-dirnethyl-9-(3-hydroxy-5,5-dirnethyl- 2-cyclohexene-l-one-2-yl)-l-oxotetrahydro-xanthene (6) rather than 3 was obtained with excellent yield.

Key words: aromatic aldehyde;CYCLOHEXANEDIONE;TEBA;XANTHENE P;WATER, BENZENESULFONIC ACID P

CLC Number: