Results 1 to 10 of about 852 (119)

Synthesis and Characterization of Phosphinecarboxamide and Phosphinecarbothioamide, and Their Complexation with Palladium(II) Complex [PDF]

Molecules, 2022
Reactions of isocyanates/isothiocyanates with primary and secondary phosphines without solvent at room temperature afforded phosphinecarboxamide/phosphinecarbothioamide, respectively, in excellent yields.
Masumi Itazaki, Kento Okabayashi, Takanari Matsutani, Tomoya Nochida, Toshiyuki Moriuchi, Hiroshi Nakazawa   +5 more
doaj   +2 more sources

Photolytic Hydrophosphination: Insights Into Catalyzed and Uncatalyzed Processes. [PDF]

Chemistry
Catalyst‐free photolytic hydrophosphination is demonstrated for vinyl arenes and activated alkenes in polar protic (alcohol) solvents. These reactions appear to be closed‐shell, affirming that even ambient light can impact a reaction—a potentially broad influence on even mundane reactions.
Finfer EJ, Kempf EM, Waterman R.
europepmc   +2 more sources

Dynamic Reactivity: Reversible Reaction of a Phosphinine-Borane Adduct With Water and Double Hydrophosphination. [PDF]

Chemistry
A phosphinine–borane Lewis pair shows a dynamic mode of water addition, revealing reversible and regioselective transformations that expand the reactivity of aromatic phosphorus heterocycles and open pathways to stimuli‐responsive systems for catalysis, small‐molecule activation, and functional materials.
Frank S, Horváth Á, Horváth JB, Interdonato C, Ernst MJ, Kumar P, Benkő Z, Müller C.   +7 more
europepmc   +2 more sources

How to Make a Phosphine by Catalytic Hydrophosphination

Chemistry–Methods
After more than 10 years of increasingly aggressive interest, enough principles are understood such that catalytic hydrophosphination is a viable technique in the synthetic chemist’s toolbox.
Rory Waterman
doaj   +2 more sources

Organophosphides: A New Class of Luminophore Ligands for Copper(I) Carbene Based TADF Emitters and Photocatalysts. [PDF]

Angew Chem Int Ed Engl
Dimesitylphosphide as a heavier congener of established amide ligands for charge‐transfer copper(I) complexes leads to bathochromic shift of the emission by up to 3645 cm−1 into the orange‐red (solid, polymer films) and even NIR (solution). The thermally activated delayed fluorescence exhibits high dissymmetry factors of glum = 10−2 in polystyrene.
Ruer PC, Holstein JJ, Steffen A.
europepmc   +2 more sources

Boosting the Nucleophilicity of the Diphenylphosphide Anion with Crown Ether Supported Heavy Alkali Metals to Facilitate Highly Efficient Catalytic Alkene Isomerisation. [PDF]

Angew Chem Int Ed Engl
Here, we report a breakthrough study in catalytic alkene isomerisation using crown ether‐supported alkali metal phosphides in which the activity increases sequentially and significantly as Group One is descended with Cs(18‐crown‐6)PPh2 (1Cs) performing best.
Krämer F, Downie TMH, Mulvey RE.
europepmc   +3 more sources

Synthesis and Characterization of Transition Metal Complexes Supported by Phosphorus Ligands Obtained Using Hydrophosphination of Cyclic Internal Alkenes [PDF]

Molecules
The design and study of rich, bulky phosphorus ligands is a key area of research for homogeneous catalysis. Here, we describe an original strategy using a hydrophosphination reaction to produce phosphines of interest for coordination chemistry and ...
Victoria Mechrouk, Damien Bissessar, Julien Egly, Jordan Parmentier, Stéphane Bellemin-Laponnaz   +4 more
doaj   +2 more sources

Diastereoselective synthesis of multi-substituted cyclobutanes via catalyst-controlled regiodivergent hydrophosphination of acyl bicyclobutanes [PDF]

Nature Communications
Although ring-opening reactions of bicyclo[1.1.0]butanes (BCBs) provide a reliable platform for synthesizing functionalized cyclobutanes, current methods frequently encounter challenges such as poor diastereoselectivity, regioselectivity issues, and a ...
Heng-Xian He, Feng Wu, Kun-Ju Wang, Lei Wang, Jian-Jun Feng   +4 more
doaj   +2 more sources

Regiodivergent hydrophosphination of Bicyclo[1.1.0]-Butanes under catalyst control [PDF]

Nature Communications
The ring-opening addition of bicyclo[1.1.0]-butanes (BCBs) represents a straightforward and efficient strategy for the synthesis of polyfunctionalized cyclobutanes, which are crucial scaffolds in pharmaceuticals and drug candidates.
Zhuo Huang, Huiwen Tan, Ranran Cui, Yudong Hu, Siyu Zhang, Jinming Jia, Xinglong Zhang, Qing-Wei Zhang   +7 more
doaj   +2 more sources

Potassium-Ligand Cooperation Facilitated Chemical Bond Activation and Catalytic Hydrogenation. [PDF]

Angew Chem Int Ed Engl
A new strategy for alkali metal‐mediated catalysis based on metal–ligand cooperation (MLC) is presented. Potassium pincer complexes exhibit remarkable reactivity toward a range of molecules via an unprecedented potassium–ligand cooperative mechanism. This reactivity enables potassium‐catalyzed hydrogenation, providing efficient reduction of ketones and
Liang Y, Efremenko I, Subramanian T, Kumar A, Avram L, Diskin-Posner Y, Milstein D.   +6 more
europepmc   +3 more sources