Browsing QO-Artigos by Author "2da0b2e2-5e49-4039-ad16-5d21e4b28ad9"
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[2+1] Cycloaddition of Catalytic Ruthenium Vinyl Carbenes: A Stereoselective Controlled Access to (Z)- and (E)-Vinyl Epoxypyrrolidines
Padín Santos, Damián; Cambeiro Cambeiro, Fermín; Fañanás Mastral, Martín; Varela Carrete, Jesús Ángel; Saá Rodríguez, Carlos (American Chemical Society, 2016)Aza-alkynals undergo a cyclization reaction with diazo compounds in the presence of catalytic amounts of Cp*RuCl(cod) to afford vinyl epoxypyrrolidines, valuable building blocks for the synthesis of biologically active ... -
Catalytic Asymmetric Synthesis of Butenolides and Butyrolactones
Mao, Bin; Fañanás Mastral, Martín; Feringa, Ben L. (American Chemical Society, 2017-06-22)γ-Butenolides, γ-butyrolactones, and derivatives, especially in enantiomerically pure form, constitute the structural core of numerous natural products which display an impressive range of biological activities which are ... -
Copper(I)-Catalyzed Tandem Carboarylation/Cyclization of Alkynyl Phosphonates with Diaryliodonium Salts
Pérez Saavedra, Borja; Vázquez Galiñanes, Nuria; Saá, Carlos; Fañanás Mastral, Martín (American Chemical Society, 2017-08-02)A copper-catalyzed tandem carboarylation/cyclization of alkynyl phosphonates with diaryliodonium salts is reported. The reaction gives straightforward access to valuable cyclic enol phosphonates in good yields under mild ... -
Copper-catalyzed O-alkenylation of phosphonates
Vázquez Galiñanes, Nuria; Andón Rodríguez, Mariña; Gómez Roibás, Patricia; Fañanás Mastral, Martín (Beilstein Institute, 2020)Copper catalysis allows the direct oxygen alkenylation of dialkyl phosphonates with alkenyl(aryl)iodonium salts with selective transfer of the alkenyl group. This novel methodology proceeds with a wide range of phosphonates ... -
Copper-catalyzed protoboration of borylated dendralenes: a regio- and stereoselective access to functionalized 1,3-dienes
Chaves Pouso, Andrea; Rivera Chao, Eva; Fañanás Mastral, Martín (Royal Society of Chemistry, 2020)A copper-catalyzed protoboration of borylated dendralenes is reported. The method employs an NHC–Cu catalyst and provides access to 1,4-addition products with excellent levels of chemo-, regio- and stereoselectivity. The ... -
Iterative catalyst controlled diastereodivergent synthesis of polypropionates
Roke, Diedrik; Fañanás Mastral, Martín; Feringa, Ben L. (Royal Society of Chemistry, 2016-11-01)Polypropionate fragments are synthesized using a combination of a copper-catalyzed asymmetric allylic alkylation, ruthenium-catalyzed cross-metathesis and iridium-catalyzed asymmetric allylic etherification. The use of an ... -
Synergistic Copper/Palladium Catalysis for the Regio- and Stereoselective Synthesis of Borylated Skipped Dienes
Mateos, Jaime; Rivera Chao, Eva; Fañanás-Mastral, Martín (American Chemical Society, 2017-07-12)A Cu/Pd-catalyzed allylboration of alkynes with allyl carbonates and bis(pinacolato)diboron to afford borylated skipped dienes is reported. Synergistic Cu and Pd catalysis enables this protocol to work for a wide array of ... -
Tandem Long Distance Chain-Walking/Cyclization via RuH2(CO)(PPh3)3/Brønsted Acid Catalysis: Entry to Aromatic Oxazaheterocycles
Bernárdez Alfaya, Rodrigo; Suárez Rivero, Jaime; Fañanás Mastral, Martín; Varela Carrete, Jesús Ángel; Saá Rodríguez, Carlos (American Chemical Society, 2016)A novel route to 1,3-oxazaheterocycles based on cooperative Ru–H/Brønsted acid catalysis is reported. The use of the commercially available RuH2(CO)(PPh3)3 complex allows for an efficient long distance chain-walking process ...