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Chin. J. Org. Chem. ›› 2003, Vol. 23 ›› Issue (7): 694-696. Previous Articles Next Articles
史达清;庄启亚;陈景;王香善;屠树江;胡宏纹
发布日期:
Shi Daqing;Zhuang Qiya;Chen Jing;Wang Xiangshan;Tu Shujiang;Hu Hongwen
Published:
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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:
O621
Shi Daqing;Zhuang Qiya;Chen Jing;Wang Xiangshan;Tu Shujiang;Hu Hongwen. Reaction of Aromation Aldehydes with 5,5-Diemthyl-1,3- cyclohexandione in Water[J]. Chin. J. Org. Chem., 2003, 23(7): 694-696.
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