480-64-8Relevant articles and documents
An orsellinic acid glucoside from Syzygium aromatica
Charles, Reena,Garg, Shri Niwas,Kumar, Sushil
, p. 1375 - 1376 (1998)
The buds of Syzygium aromatica yielded two triterpenoid acids, oleanolic acid and crategolic acid, and a new phenolic glucoside, orsellinic-2-O-β-D- glucopyranoside, from its methanolic extract. The structure was elucidated by spectroscopic methods and acid hydrolysis.
CRUSTINIC ACID, A TRIDEPSIDE FROM UMBILICARIA CRUSTULOSA
Huneck, S.,Porzel, A.,Schmidt, J.,Feige, G. B.,Posner, B.
, p. 475 - 477 (1993)
The structure of crustinic acid extracted from Umbilicaria crustulosa has been elucidated as 4,6-dihydroxy-3-carboxy-2-methylphenyl lecanorate by spectroscopic and chemical means.Key Word Index - Umbilicaria crustulosa; Umbilicariaceae; crustinic acid; tridepside; lichen substance.
Kolbe-Schmitt type reaction under ambient conditions mediated by an organic base
Sadamitsu, Yuta,Okumura, Akira,Saito, Kodai,Yamada, Tohru
supporting information, p. 9837 - 9840 (2019/08/20)
The combined use of an organic base for resorcinols realized a Kolbe-Schmitt type reaction under ambient conditions. When resorcinols (3-hydroxyphenol derivatives) were treated with DBU under a carbon dioxide atmosphere, nucleophilic addition to carbon dioxide proceeded to afford the corresponding salicylic acid derivatives in high yields.
New orsellinic acid esters from fungus chaetomium globosporum
Xu, Guo-Bo,Wang, Ni-Ni,Bao, Jin-Ku,Yang, Tao,Li, Guo-You
, p. 151 - 159 (2014/02/14)
Seven new orsellinic acid esters, 1-7, and four known compounds were isolated from the solid, fermented rice culture of Chaetomium globosporum (cib-132). Their structures were elucidated by 1D- and 2D-NMR spectra, and the relative configuration of compoun