A Comparison of Immobilised Triphenylphosphine and 1‐Hydroxybenzotriazole as Mediators of Catch‐and‐Release Acylation Under Flow Conditions
作者:Joseph Tadros、Christian Dankers、Ashley Jurisinec、Maria Menti‐Platten、Janice R. Aldrich‐Wright、Christopher P. Gordon
DOI:10.1002/asia.202101308
日期:2022.3
A ‘catch-and-release’ assessment of immobilised triphenylphosphine (PS-PPh3) and 1-hydroxybenzotriazole (PS-HOBt) as facilitators of acylation-mediated amide couplings is described. Through evaluations of reaction temperatures, substrate stoichiometries, solvents, and flow rates, we report findings in favour of PS-HOBt over PS-PPh3.
Electrochemical Synthesis and Structural Characterization of Silver(I) Complexes of <i>N</i>-2-Pyridyl Sulfonamide Ligands with Different Nuclearity: Influence of the Steric Hindrance at the Pyridine Ring and the Sulfonamide Group on the Structure of the Complexes
作者:Inmaculada Beloso、Jesús Castro、José A. García-Vázquez、Paulo Pérez-Lourido、Jaime Romero、Antonio Sousa
DOI:10.1021/ic0490268
日期:2005.1.1
X-ray diffraction. Compounds 1 and 2b present a polymer structure formed by an AgN(2)} digonal core. Compounds 2a and 3a are tetranuclear and also have a distorted AgN(2)} digonal core. Compound 3b is based on binuclear distorted AgN(2)} digonal units joined by an intermolecular sulfonyl oxygen atom to produce a stairlike polymer structure. The heteroleptic complexes 5 and 8 are dimeric with a distorted