From the United States to China:The Transfer of Research Centres in Information Science

Selectivity control in thiol–yne click reactions via visible light induced associative electron upconversion

“…The substrate scope for the most challenging selective synthesis of the Markovnikov product (3) involving different types of alkynes and thiols was then investigated employing the optimized reaction conditions (Scheme 4). Due to the importance of uorine containing compounds, [25][26][27] o-F-substituted thiol was chosen as the model thiol for alkyne scope investigation. A number of aromatic thiols, bearing various functional groups at the ortho-, meta-and para-position reacted smoothly with phenylacetylene to afford the a-isomers (3) in 74-95% yields.…”

Measuring researchers’ potential scholarly impact with structural variations: Four types of researchers in information science (1979–2018)

“…Then, using citation expansion, we retrieved all references that cited the initial set for the subsequent analysis (Fig 1). In the previous analysis and definition of the IS field research evolution and research front, several studies in the IS field adopted a collection of 12 journals (S1 Appendix) as a representative body of the relevant literature [72][73][74][75][76][77][78][79][80][81][82]. However, the selected journals might not necessarily and sufficiently represent the IS field [83].…”

Physical properties, ligand substitution reactions, and biological activity of Co(iii)-Schiff base complexes

“…9,[57][58][59][60][61] The ease of detection and altered pharmacokinetics of fluorinated compounds make this element ideal for use in drugs, as reflected by the fact that over 20% of currently administered drugs contain fluorine. 62 containing 0.1% TFA over 20 min. Gradient elution for kinetics experiments was performed using 10% methanol in water containing 0.1% TFA to 100% methanol containing 0.1% TFA over 15 min, then continuing at 100% methanol for 10 minutes.…”