19104-04-2Relevant academic research and scientific papers
Synthesis of barbacic acid
Long, Yi,Luo, Guo-Yong,Xi, Yin-Kai,Yang, Wu-De,Yu, Xiang
, (2022/01/11)
A new approach for the synthesis of the active barbatic acid has been achieved in eight steps with 22.3% total yield by using commercially available methyl atratate as starting material. This synthesis provides access to multi-gram quantities of barbatic
Isolation, Chemical Modification, and Anticancer Activity of Major Metabolites of the Lichen Parmotrema mesotropum
Mallavadhani, Uppuluri Venkata,Tirupathamma, Reddy Srilakshmi,Sagarika,Ramakrishna, Sistla
, p. 825 - 831 (2019/11/13)
Extensive chromatographic purification of the chloroform–methanol (1:1) extract of the lichen Parmotrema mesotropum led to the isolation of methyl hematommate (1), methyl-2,4-dihydroxy-3,6-dimethylbenzoate (2), orcinol (3), and atranorin (4). The two majo
Preparation of resorcinol derivatives
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, (2008/06/13)
A process for the preparation of resorcinol derivatives of the general formula I STR1 where R1 is carbalkoxy, nitrile, alkyl or H and R2 to R5 are H or lower alkyl, by reacting the corresponding cyclohexane-1,3-dione (II) with oxygen or an oxygen-containing gas in the presence of a catalytic amount of a copper compound and of from 1 to 10 moles of a hydrogen halide, or from 0.5 to 5 moles of thionyl chloride per mole of II, in an alkanol having from 1 to 6 carbon atoms, tetrahydrofuran or methyl tert.-butyl ether as the solvent, at from 0° to 150 C., without the addition of a significant amount of water to the reaction mixture. Some of the resorcinol derivatives prepared are useful scents with fragrance notes of the character of the odoriferous substance of natural oak moss.
Fulgoicin, A New Depsidone from the Lichen Fulgensia fulgida (Nyl.) Szat.
Mahandru, M. Mohan,Tajbakhsh, Alireza
, p. 2249 - 2252 (2007/10/02)
The synthesis of the depsidone 2,4-dichloro-3-hydroxy-8-methoxy-1,6,9-trimethyl-11H-dibenzodioxepin-11-one (fulgoicin) is described.
