Recent developments and trends in the iron- and cobalt-catalyzed Sonogashira reactions

• Surendran Amrutha,
• Sankaran Radhika and
• Gopinathan Anilkumar

Beilstein J. Org. Chem. 2022, 18, 262–285, doi:10.3762/bjoc.18.31

• nanorods was found to increase with respect to Fe3+ ions-to-ligand ratio and vice versa. The reusability and separation of the ferromagnetic α-Fe2O3 nanoparticle catalyst were very effective, simple and economical due to its magnetic nature. The in situ-generated α-Fe2O3 nanoparticles showed better

• catalytic efficiency than other catalytic systems. For studying the efficiency of the catalyst, they selected the reaction of 4-iodonitrobenzene and phenylacetylene in the presence of 0.5 mol % of Fe2O3 nanoparticle as catalyst and K2CO3 as base in ethylene glycol at 80 °C. Both, the electrophilic character

Towards potential nanoparticle contrast agents: Synthesis of new functionalized PEG bisphosphonates

• Souad Kachbi-Khelfallah,
• Maelle Monteil,
• Margery Cortes-Clerget,
• Evelyne Migianu-Griffoni,
• Jean-Luc Pirat,
• Olivier Gager,
• Julia Deschamp and
• Marc Lecouvey

Beilstein J. Org. Chem. 2016, 12, 1366–1371, doi:10.3762/bjoc.12.130

• is a procedure developed in our laboratory to introduce the bisphosphonate from acyl chloride and tris(trimethylsilyl)phosphite in one step. Keywords: bisphosphonate; Fe2O3 nanoparticle; polyethylene glycol derivatives; surface ligand synthesis; Introduction Numerous researchers are interested in