Synthesis of [N,P] ligands based on pyrrole. Application to the total synthesis of arnottin I
作者:Jesús V. Suárez-Meneses、Edgar Bonilla-Reyes、Ever A. Blé-González、M. Carmen Ortega-Alfaro、Rubén Alfredo Toscano、Alejandro Cordero-Vargas、José G. López-Cortés
DOI:10.1016/j.tet.2014.01.002
日期:2014.2
This paper describes the synthesis of a new class of [N,P] ligands based on pyrrole with a dimethylamino group as hard donor and a phosphine moiety as soft base. We have also modified the phosphine fragment to change the electronic and steric properties of these ligands. Palladium complex 3a proved to be very efficient in Heck cross-coupling reactions and in intramolecular aryl–aryl couplings of esters
Gold(I) complexes bearing P‐pyrrole phosphine ligands: Synthesis and catalytic activity towards cycloisomerization of 1,6‐enynes
作者:Elvia P. Sánchez‐Rodríguez、Salvador Cortés‐Mendoza、Jean‐Claude Daran、M. Carmen Ortega‐Alfaro、José G. López‐Cortés、Maryse Gouygou
DOI:10.1002/aoc.5709
日期:2020.8
P‐pyrrole phosphines (R2Ppyr), in which a pyrrole group is directly bonded to the phosphorus atom, act as monodentate k‐P ligands towards gold(I) center to afford either neutral or cationic mononuclear complexes as well as neutral dinuclear complexes. All of these new gold(I) complexes have been structurally characterized and their first uses in catalysis have demonstrated their effectiveness as precatalysts
Well-defined Cu(<scp>i</scp>) complexes based on [N,P]-pyrrole ligands catalyzed a highly endoselective 1,3-dipolar cycloaddition
作者:Miguel A. Alvarado-Castillo、Salvador Cortés-Mendoza、José E. Barquera-Lozada、Francisco Delgado、Ruben A. Toscano、M. Carmen Ortega-Alfaro、José G. López-Cortés
DOI:10.1039/d3dt03692h
日期:——
the synthesis and catalytic application of a new family of dinuclear Cu(I) complexes based on [N,P]-pyrrole ligands. The Cu(I) complexes (4a–d) were obtained in good yields and their catalytic properties were evaluated in the1,3-dipolar cycloaddition of azomethine ylides and electron-deficient alkenes. The air-stable complexes 4a–d exhibited high endo-diasteroselectivity to obtain substituted pyrrolidines
我们在此报告了基于[N,P]-吡咯配体的新双核Cu( I )配合物家族的合成和催化应用。 Cu( I )配合物( 4a - d )以良好的收率获得,并在偶氮甲碱叶立德和缺电子烯烃的1,3-偶极环加成反应中评估了其催化性能。空气稳定配合物4a - d表现出高内非对映选择性以获得取代的吡咯烷,并且催化体系表现出优异的反应活性和广泛的取代耐受性。