The Essential Oil ofArtemisia subdigitataMattf. From Mongolian the Desert—Gobi

Chemical Composition and Insecticidal Activity Against Sitophilus zeamais of the Essential Oils Derived from Artemisia giraldii and Artemisia subdigitata

“…A literature survey showed that there are no reports on the volatile constituents and insecticidal activity of A. giraldii . The chemical composition of the essential oil derived from A. subdigitata has been previously reported [ 25 , 26 ]. However, to date, there has been no report on the insecticidal activity of A. subdigitata essential oil.…”

Synthesis and stereochemical assignment of methyl 3-(3-hydroxyphenoxy) acrylate via cis-trans photoisomerization

“…The first step of the process involves a Michael addition of triphenylphosphine to the propiolate, thus generating an active phosphonium intermediate (4). This latter species undergoes a subsequent addition of the phenoxide in a 1,4-fashion, followed by elimination of triphenylphosphine, to afford compound 2.…”

“…1 Examples of such compounds are the potent anti-malarial drug artemisinin and its derivatives, which can be isolated from the aerial parts of Artemisia annua L. 2 However, their natural occurrence is very low, which has led to intensive research efforts toward the production of new biotechnological strategies or synthetic ways to enhance their production. 1,2 Apart from highly oxygenated sesquiterpenes, several other aromatic compounds such as coniferaldehyde derivatives and 5-alkyl resorcinols have also been isolated from Artemisia annua L. 3 It has also been reported 4 that Artemisia subdigitata Mattf. contains flavonoids, coumarins, substituted phenols, and a number of compounds that have not been previously described, like 3-(3-hydroxyphenoxy)-2-propenal (1) shown in Figure 1.…”

Composition of the essential oil of Artemisia ciniformis, A. kopetdaghensis, and A. khorasanica in Iran

“…In contrast to the oils of many Artemisia species [3][4][5][6][7][8][9][10][11][12][13][14][15], the essential oils of Artemisia ciniformis and A. kopetdaghensis have not been analyzed until now. In addition, as there has only been one report describing the volatile constituents of A. khorasanica, we also decided to include it in our analysis [16].…”