Diego J. Cárdenas
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View article: Fe‐Photocatalyzed Decarboxylative Giese‐Type Reaction of α‐N, O or S Carboxylic Acids: Insight into the Mechanism of the Radical Formation
Fe‐Photocatalyzed Decarboxylative Giese‐Type Reaction of α‐N, O or S Carboxylic Acids: Insight into the Mechanism of the Radical Formation Open
Very simple conditions are described for the Fe‐photocatalyzedaddition of α‐amino, α‐alkoxy, and α‐alkylthio radicals to electron‐deficient alkenes. The reactions proceed under smooth ligandless conditions with inexpensive base and in the …
View article: Toward Multiple Conductance Pathways with Heterocycle-Based Oligo(phenyleneethynylene) Derivatives
Toward Multiple Conductance Pathways with Heterocycle-Based Oligo(phenyleneethynylene) Derivatives Open
In this paper, we have systematically\nstudied how the replacement\nof a benzene ring by a heterocyclic compound in oligo(phenyleneethynylene)\n(OPE) derivatives affects the conductance of a molecular wire using\nthe scanning tunneling mi…
View article: Ni(2,2′:6′,2′′-terpyridine)<sub>2</sub>: a high-spin octahedral formal Ni(0) complex
Ni(2,2′:6′,2′′-terpyridine)<sub>2</sub>: a high-spin octahedral formal Ni(0) complex Open
Novel Ni(tpy) 2 is an octahedral highly paramagnetic complex. Magnetic measurements and DFT calculations suggest intermolecular antiferromagnetic coupling in the solid state.
View article: Nickel‐Catalyzed Cycloisomerization of 1,5‐Allenynes
Nickel‐Catalyzed Cycloisomerization of 1,5‐Allenynes Open
We report the Ni‐catalyzed cycloisomerization of 1,5‐allenynes. Substrates containing terminal alkynes afford cyclopentene derivatives, whereas internal alkynes lead to the formation of two consecutive C−C bonds to give fused 5–5 bicyclic …
View article: Nickel‐Catalyzed Cascade Cyclization‐Negishi Coupling of Redox Active Esters for the Synthesis of Pyrrolidines
Nickel‐Catalyzed Cascade Cyclization‐Negishi Coupling of Redox Active Esters for the Synthesis of Pyrrolidines Open
We have developed a Ni‐catalyzed cascade cyclization/Negishi‐coupling reaction for the formation of pyrrolidines and pyrrolidinones starting from N‐ protected allylamines and acrylamides which contain a redox active ester group. The reacti…
View article: CCDC 2121296: Experimental Crystal Structure Determination
CCDC 2121296: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Nickel‐Catalyzed Hydroborylative Polycyclization of Allenynes: an Atom‐Economical and Diastereoselective Synthesis of Bicyclic 5–5 Fused Rings.
Nickel‐Catalyzed Hydroborylative Polycyclization of Allenynes: an Atom‐Economical and Diastereoselective Synthesis of Bicyclic 5–5 Fused Rings. Open
It‘s a kind of magic: Ni catalyzes the formation of two C−C and one C−B bonds to afford boronate-containing bicycles in a fully atom-economical process. Details can be found in the Research Article by Diego J. Cárdenas, M. Teresa Quirós an…
View article: Nickel‐Catalyzed Hydroborylative Polycyclization of Allenynes: an Atom‐Economical and Diastereoselective Synthesis of Bicyclic 5‐5 Fused Rings
Nickel‐Catalyzed Hydroborylative Polycyclization of Allenynes: an Atom‐Economical and Diastereoselective Synthesis of Bicyclic 5‐5 Fused Rings Open
A diastereoselective synthesis of borylated bicyclic 5‐5 fused ring systems by a domino Ni‐catalyzed hydroborylative polycyclization of allenynes has been developed. The reaction provides two new C−C and one C−B bonds and constitutes an at…
View article: Pd-catalyzed C(sp<sup>3</sup>)–C(sp) bond formation in iodocyclobutenes
Pd-catalyzed C(sp<sup>3</sup>)–C(sp) bond formation in iodocyclobutenes Open
A Pd-catalyzed C(sp 3 )–C(sp) bond formation for the direct functionalization of cyclobutenes with alkynes has been achieved, suggesting (DFT and control experiments) an unusual pathway of oxidative addition in tertiary iodoalkanes.
View article: Corrigendum: Iron‐Catalyzed Hydroborylative Cyclization of 1,6‐Enynes
Corrigendum: Iron‐Catalyzed Hydroborylative Cyclization of 1,6‐Enynes Open
The authors acknowledge that the original article contains mistakes as they mixed the data corresponding to complexes with two different ligands. This affects the energy values contained in Scheme 1, the correct version of which is given h…
View article: Triflyl-assisted reductive Pd-catalyzed Tsuji–Trost type reaction
Triflyl-assisted reductive Pd-catalyzed Tsuji–Trost type reaction Open
A palladium-catalyzed hydrodetriflylation reaction using water as a convenient hydrogen source has allowed the preparation of novel (triflyl)cyclobutenes from readily available precursors.
View article: Ni-Catalyzed Reductive Dicarbofunctionalization of Nonactivated Alkenes: Scope and Mechanistic Insights
Ni-Catalyzed Reductive Dicarbofunctionalization of Nonactivated Alkenes: Scope and Mechanistic Insights Open
Olefins devoid of directing or activating groups have been dicarbofunctionalized here with two electrophilic carbon sources under reductive conditions. Simultaneous formation of one C(sp3)-C(sp3) and one C(sp3)-C(sp2) bond across a variety…
View article: Atom-Economical Ni-Catalyzed Diborylative Cyclization of Enynes: Preparation of Unsymmetrical Diboronates
Atom-Economical Ni-Catalyzed Diborylative Cyclization of Enynes: Preparation of Unsymmetrical Diboronates Open
We report a Ni-catalyzed diborylative cyclization of enynes that affords carbo- and heterocycles containing both alkyl- and alkenylboronates. The reaction is fully atom-economical, shows a broad scope, and employs a powerful and inexpensiv…
View article: CCDC 1819416: Experimental Crystal Structure Determination
CCDC 1819416: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 1880897: Experimental Crystal Structure Determination
CCDC 1880897: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 1550258: Experimental Crystal Structure Determination
CCDC 1550258: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …