60848-26-2Relevant academic research and scientific papers
Synthesis of 2,6-dimethoxy-9-phenyl-1H-phenalen-1-one and structural revision of the benzoindenone from Eichhornia crassipes
Li, Xiaowan,Si, Tongxu,Ku, Chuenfai,Zhang, Hongjie,Wang, Mingzhong,Chan, Albert S.C.
, p. 183 - 189 (2019/01/21)
The total synthesis of the natural phytoalexin 2,6-dimethoxy-9-phenyl-1H-phenalen-1-one (3) isolated from Eichhornia crassipes was accomplished in seven steps. The synthetic strategy included a Friedel-Crafts acylation and a Jacobsen-Katsuki epoxidation as the key reactions to obtain the target compound. Based on a comparison of the NMR data and a crystal structure of 3, the previously proposed structure of 2,5-dimethoxy-4-phenyl-benzoindenone (2) isolated from the same plant has been revised.
Preparation method of 6-methoxyperinaphthenone compound
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Paragraph 0018; 0022; 0024, (2018/09/13)
The invention discloses a preparation method of a 6-methoxyperinaphthenone compound. The method comprises the following steps: taking cheap and easily available 4-bromo-1-naphthaldehyde as a raw material, enabling 4-bromine-1-naphthaldehyde to react with
Synthesis of [phenyl-13C6]lachnanthocarpone and other 13C-labelled phenylphenalenones
Otalvaro, Felipe,Quinones, Winston,Echeverri, Fernando,Schneider, Bernd
, p. 147 - 159 (2007/10/03)
[phenyl-13C6]Lachnanthocarpone ([phenyl- 13C6]2,6-dihydroxy-9-phenylphenalen-1-one), a hypothetical intermediate in the biosynthesis of various natural phenylphenalenones, was prepared in four steps using [U- s
Colouring Matters of Australian Plants.XXIII.A New Synthesis of Arylphenalenones and Naphthoxantenones
Cooke, Raymond G.,Merrett,Bryan K.,O'Loughlin, Gary J.,Pietersz, Geoffrey A.
, p. 2317 - 2324 (2007/10/02)
Condensation of naphthalene-2,7-diol with 2,4-dioxo-4-phenylbutanoic acid gives 6-hydroxy-1-oxo-9-phenyl-1H-phenalene-7-carboxylic acid which is readily converted into the lactone and on treatment with diazomethane forms only methyl 6-methoxy-1-oxo-9-phenyl-1H-phenalene-7-carboxylate.Analogous reactions of other 4-aryl-2,4-dioxobutanoic acids with naphthalene-2,7-diol or with 3,6-dimethoxynaphthalene-2,7-diol give easy access to arylphenalenones and naphthoxanthenones related to natural pigments.
