Iron-Catalyzed Direct Olefin Diazidation via Peroxyester Activation Promoted by Nitrogen-Based Ligands

10.1021/acscatal.8b00821

2018-04-19

We herein report an iron-catalyzed direct diazidation method via activation of bench-stable peroxyesters promoted by nitrogen-based ligands. This method is effective for a broad range of olefins and N-heterocycles, including those that are difficult substrate...

Catalytic Dehydrogenation of (Di)Amine-Boranes with a Geometrically Constrained Phosphine-Borane Lewis Pair

10.1021/acscatal.8b00152

2018-04-18

The o-phenylene bridged phosphine-borane iPr2P(o-C6H4)B(Fxyl)2 2 was prepared. Despite ring strain, it adopts a closed form, as substantiated by NMR, XRD, and DFT analyses. However, the corresponding open form is only slightly higher in energy. The dormant Le...

Well-Defined β-Diketiminatocobalt(II) Complexes for Alkene Cyclohydroamination of Primary Amines

10.1021/acscatal.8b00631

2018-04-18

A well-defined low-coordinate β-diketiminatocobalt(II) alkyl complex is reported as an active precatalyst for the selective alkene cyclohydroamination of unprotected primary amines under mild conditions (rt–90 °C). The reaction mechanism has been investigated...

Isoprene Regioblock Copolymerization: Switching the Regioselectivity by the in Situ Ancillary Ligand Transmetalation of Active Yttrium Species

10.1021/acscatal.8b00600

2018-04-18

Regioblock copolymers of single alkenes hold great promise for modifying the properties of polymer materials but remain scarce due to the lack of viable synthetic methodologies. Here we describe a method for switching the regioselectivity of the cationic yttr...

Low-Energy Electrocatalytic CO2 Reduction in Water over Mn-Complex Catalyst Electrode Aided by a Nanocarbon Support and K+ Cations

10.1021/acscatal.8b01068

2018-04-18

Electrocatalytic CO2 reduction over a Mn-complex catalyst in an aqueous solution was achieved at very low energy with a combination of multiwalled carbon nanotubes (MWCNTs) and K+ cations. Although the bare Mn-complex did not function as a catalyst in an aque...

Manganese(II/III/I)-Catalyzed C–H Arylations in Continuous Flow

10.1021/acscatal.8b00166

2018-04-17

Versatile manganese-catalyzed C–H arylations on synthetically meaningful pyridines were accomplished with sustainable MnCl2 as the catalyst. The oxidative C–H functionalizations proved viable with a user-friendly and safe continuous flow setup by weak amide-a...

Outer-Sphere Effects in Visible-Light Photochemical Oxidations with Immobilized and Recyclable Ruthenium Bipyridyl Salts

10.1021/acscatal.8b00890

2018-04-16

The ability to accelerate visible-light photochemical reactions in a simple setup and with little photocatalyst modification is an important challenge. We report that the adsorption of a widely used organometallic photocatalyst ([Ru(bpy)3]Cl2) on unmodified s...

Toward an Effective Control of the H2 to CO Ratio of Syngas through CO2 Electroreduction over Immobilized Gold Nanoparticles on Layered Titanate Nanosheets

10.1021/acscatal.8b00647

2018-04-16

In recent years, the electroreduction of CO2 to valuable products has emerged as a rational answer to rising CO2 emissions and a strategic approach to incorporate renewable electricity from intermittent sources (e.g., wind and solar) into the global energy su...

CO2 Hydrogenation to Methanol over Catalysts Derived from Single Cationic Layer CuZnGa LDH Precursors

10.1021/acscatal.8b00474

2018-04-16

Ultrathin (1–3 cationic-layers) (CuZn)1–xGax-CO3 layered double hydroxide (LDH) nanosheets were synthesized following the aqueous miscible organic solvent treatment (AMOST) method and applied as catalyst precursors for methanol production from CO2 hydrogenati...

Water Oxidation Initiated by In Situ Dimerization of the Molecular Ru(pdc) Catalyst

10.1021/acscatal.7b03768

2018-04-16

The mononuclear ruthenium complex [Ru(pdc)L3] (H2pdc = 2,6-pyridinedicarboxylic acid, L = N-heterocycles such as 4-picoline) has previously shown promising catalytic efficiency toward water oxidation, both in homogeneous solutions and anchored on electrode su...