144782-98-9Relevant academic research and scientific papers
Experimental and Computational Study of an Unexpected Iron-Catalyzed Carboetherification by Cooperative Metal and Ligand Substrate Interaction and Proton Shuttling
El-Sepelgy, Osama,Brzozowska, Aleksandra,Azofra, Luis Miguel,Jang, Yoon Kyung,Cavallo, Luigi,Rueping, Magnus
supporting information, p. 14863 - 14867 (2017/10/30)
An iron-catalyzed cycloisomerization of allenols to deoxygenated pyranose glycals has been developed. Combined experimental and computational studies show that the iron complex exhibits a dual catalytic role in that the non-innocent cyclopentadienone ligand acts as proton shuttle by initial hydrogen abstraction from the alcohol and by facilitating protonation and deprotonation events in the isomerization and demetalation steps. Molecular orbital analysis provides insight into the unexpected and selective formation of the 3,4-dihydro-2H-pyran.
The scope of the Heck arylation of enol ethers with arenediazonium salts: a new approach to the synthesis of flavonoids
Machado, Angelo H.L.,de Sousa, Marcio A.,Patto, Daniela C.S.,Azevedo, Luiz F.S.,Bombonato, Fernanda I.,Correia, Carlos Roque D.
supporting information; experimental part, p. 1222 - 1225 (2009/05/31)
The scope of the Heck arylation of cyclic and acyclic enol ethers with arenediazonium salts was evaluated. Arylation of 2,3-dihydrofuran yielded 2-aryl-2,5-dihydrofurans as the major adducts (>99:1) except when using n-Bu4NHSO4 as ad
Highly regioselective heck coupling reactions of aryl halides and dihydropyran in the presence of an NHC-pyridine ligand
Jarusiewicz, Jamiei,Kyung, Soo Yoo,Kyung, Woon Jung
body text, p. 482 - 486 (2009/08/09)
The Heck coupling reactions of aryl halides and 3,4-dihydro-2H-pyran facilitated the regioselective synthesis of arylated cyclic enol ethers. Good yields were obtained using 5 mol% of an NHC-ligand-Pd-catalyst complex in the presence of K2CO3 in DMF at 100°C. The use of this catalytic system broadens the substrate scope and improves the selectivity for this cross-coupling process. Georg Thieme Verlag Stuttgart.
New tandem catalysis: Preparation of cyclic enol ethers through a ruthenium-catalyzed ring-closing metathesis-olefin isomerization sequence
Sutton, Amanda E.,Seigal, Benjamin A.,Finnegan, David F.,Snapper, Marc L.
, p. 13390 - 13391 (2007/10/03)
Tandem reactions that proceed with a single metal catalyst precursor offer novel opportunities for developing efficient new reaction sequences. In this regard, reaction conditions have been identified that allows for a tandem ring-closing metathesis-olefi
