Toward prediction of the precatalyst activation mechanism through the cross-coupling reactions: Reduction of Pd(II) to Pd(0) in precatalyst of the type Pd-PEPPSI
Sign Up to like & getrecommendations! Published in 2020 at "Journal of computational chemistry"
DOI: 10.1002/jcc.26393
Abstract: Pd-PEPPSI type complexes are widely used as precatalyst in a variety of organic reactions, including the Negishi, Kumada and Suzuki-Miyaura cross-coupling reactions. The aim of this research is to determine potential proposed reaction pathways 1,… read more here.
Keywords: precatalyst activation; peppsi; precatalyst; type ... See more keywords
Study of Precatalyst Degradation Leading to the Discovery of a New Ru0 Precatalyst for Hydrogenation and Dehydrogenation
Sign Up to like & getrecommendations! Published in 2018 at "Organometallics"
DOI: 10.1021/acs.organomet.8b00353
Abstract: The complex Ru-MACHO (1) is a widely used precatalyst for hydrogenation and dehydrogenation reactions under basic conditions. In an attempt to identify the active catalyst form, 1 was reacted with a strong base. The formation… read more here.
Keywords: degradation; dehydrogenation; precatalyst hydrogenation; precatalyst ... See more keywords
Dehydropolymerization of H3B·NMeH2 Using a [Rh(DPEphos)]+ Catalyst: The Promoting Effect of NMeH2
Sign Up to like & getrecommendations! Published in 2019 at "ACS Catalysis"
DOI: 10.1021/acscatal.9b00081
Abstract: [Rh(κ2-PP-DPEphos){η2η2-H2B(NMe3)(CH2)2tBu}][BArF4] acts as an effective precatalyst for the dehydropolymerization of H3B·NMeH2 to form N-methylpolyaminoborane (H2BNMeH)n. Control of polymer molecular weight is achieved by variation of precatalyst loading (0.1–1 mol %, an inverse relationship) and use… read more here.
Keywords: dehydropolymerization h3b; precatalyst; h3b nmeh2; dpephos ... See more keywords
Unexpected Precatalyst σ-Ligand Effects in Phenoxyimine Zr-Catalyzed Ethylene/1-Octene Copolymerizations.
Sign Up to like & getrecommendations! Published in 2019 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.9b01445
Abstract: Recent decades have witnessed intense research efforts aimed at developing new homogeneous olefin polymerization catalysts, with a primary focus on metal-Cl or metal-hydrocarbyl precursors. Curiously, metal-NR2 precursors have received far less attention. In this contribution,… read more here.
Keywords: unexpected precatalyst; ligand effects; precatalyst; ligand ... See more keywords
A ruthenium(ii) bis(phosphinophosphinine) complex as a precatalyst for transfer-hydrogenation and hydrogen-borrowing reactions.
Sign Up to like & getrecommendations! Published in 2017 at "Dalton transactions"
DOI: 10.1039/c7dt01022b
Abstract: The 2-phosphinophosphinine 2-PPh2-3-Me-6-SiMe3-PC5H2 (2) has been prepared and was shown to act as a κ2-chelating ligand in cis-[RuCl2(2)2] (4). Complex 4 was a competent precatalyst for the room temperature transfer hydrogenation of acetophenone (0.1 mol%… read more here.
Keywords: precatalyst; ruthenium bis; transfer hydrogenation; phosphinophosphinine ... See more keywords
On decomposition, degradation, and voltammetric deviation: the electrochemist's field guide to identifying precatalyst transformation.
Sign Up to like & getrecommendations! Published in 2019 at "Chemical Society reviews"
DOI: 10.1039/c8cs00851e
Abstract: What is the identity of the true electrocatalytic species? This fundamental question has plagued the molecular electrocatalysis community during its decades-long search for selective and efficient transition-metal based electrocatalysts for fuel forming reactions. Identifying when… read more here.
Keywords: voltammetric deviation; decomposition degradation; precatalyst; precatalyst transformation ... See more keywords
Selective oxidation of silanes into silanols with water using [MnBr(CO)5] as a precatalyst
Sign Up to like & getrecommendations! Published in 2022 at "Chemical Science"
DOI: 10.1039/d2sc05959b
Abstract: The development of earth-abundant catalysts for the selective conversion of silanes to silanols with water as an oxidant generating valuable hydrogen as the only by-product continues to be a challenge. Here, we demonstrate that [MnBr(CO)5]… read more here.
Keywords: precatalyst; oxidation silanes; selective oxidation; silanes silanols ... See more keywords