10.1016/0031-9422(82)83106-3
The study focuses on the phytochemical investigation of Horsfieldia iryaghedhi seeds, a plant indigenous to Sri Lanka. The researchers extracted and characterized several constituents from the hot methanol extract of the seeds, including a new lignan named horsfieldin, along with d-asarinin, (-)-dihydrocubebin, dodecanoylphloroglucinol, myristic acid, trimyristin, and sitosterol. The study provides detailed information on the structure elucidation and absolute configuration of the lignans, as well as discussing their chemotaxonomic significance. The findings contribute to the understanding of the chemical composition of H. iryaghedhi and its potential biological activities, as tetrahydrofuran lignans like horsfieldin have been shown to possess insecticidal and medicinal properties.
10.1055/s-0028-1083601
The research focuses on the development and synthesis of chemically modified linear and cyclic polyglycerols and their esters, specifically triglyceryl di-, tri-, and tetra-fatty acid esters, which are structurally well-defined and have a single polymerization degree. The purpose of this study is to create new oil gelators capable of gelling up cooking oils, with a particular emphasis on understanding the role of alkyl chain length in the gelation process. The study concluded that these triglyceryl ester gelators exhibit prominent gelation ability and can gel a wide variety of oils. Key chemicals used in the synthesis process include triglycerol, fatty acid esters such as stearic, myristic, palmitic, and arachidic acids, benzyl bromide, stearoyl chloride, and various reagents for protection and deprotection steps, as well as catalysts and solvents like pyridine, 4-(dimethylamino)pyridine, and palladium on carbon for hydrogenolysis.
