200421-52-9Relevant articles and documents
A four-ketone derivative and its preparation method and application
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Paragraph 0039; 0040; 0041, (2016/10/10)
The invention provides tetrone derivatives as well as a preparation method and application thereof. The derivatives have a general formula structure shown in the specification, wherein in the structure, R1 is any one of -H, 4-OCH3, 2-Cl, 3,4-(OCH3)2, 4-CH
L-Proline-catalysed the synthesis of aromatic aldehydes and ketones and their acridione derivatives at room temperature
Wang, Fang-Ming,Bao, Dan,Hu, Bing-Xiang,Zhou, Ze-Yu,Huang, Deng-Deng,Chen, Li-Zhuang,Liu, Yang-Mei
, p. 445 - 450 (2015/11/03)
A series of xanthene derivatives were prepared from cyclohexane-1,3-dione and aromatic aldehydes through Knoevenagel-Michael and cyclisation reactions in methanol:ethanol mixture (1:1), catalysed by a very small amount of l-proline at room temperature. Is
An efficient and simple synthesis of tetraketones catalyzed by Yb(OTf) 3-sio2 under solvent free conditions
Kameshwara Rao,Kumar, Muthyala Manoj,Kumar, Anil
experimental part, p. 1128 - 1135 (2011/10/04)
A novel and efficient three-component one-pot condensation method has been described for the synthesis of tetraketones or arylmethylene[bis(3-hydroxy-2- cyclohexene-1-ones)] using Yb(OTf)3-SiO2 and amine as catalytic system under sol