Catalytic enantioselective Minisci-type addition to heteroarenes
作者:Rupert S. J. Proctor、Holly J. Davis、Robert J. Phipps
DOI:10.1126/science.aar6376
日期:2018.4.27
amino acids and then activated them with an iridium photocatalyst. At the same time, a chiral phosphoric acid catalyst was used to activate the pyridine and bias the reaction geometry. Science, this issue p. 419 Pairing a photocatalyst with a chiral acid renders a widely used carbon-carbon bond-forming reactionasymmetric. Basic heteroarenes are a ubiquitous feature of pharmaceuticals and bioactive molecules
Efficient Continuous-Flow H–D Exchange Reaction of Aromatic Nuclei in D2O/2-PrOH Mixed Solvent in a Catalyst Cartridge Packed with Platinum on Carbon Beads
Herein, a continuous-flow deuteration methodology for various aromaticcompounds is developed based on heterogeneous platinum-catalyzed hydrogen-deuterium exchange. The reaction entailed the transf...
在此,基于多相铂催化氢-氘交换,开发了一种用于各种芳族化合物的连续流氘化方法。该反应需要转移...
Catalytic Hydrogenation with Frustrated Lewis Pairs: Selectivity Achieved by Size-Exclusion Design of Lewis Acids
Catalytichydrogenation that utilizes frustratedLewispair (FLP) catalysts is a subject of growing interest because such catalysts offer a unique opportunity for the development of transition‐metal‐free hydrogenations. The aim of our recent efforts is to further increase the functional‐group tolerance and chemoselectivity of FLP catalysts by means of size‐exclusion catalyst design. Given that hydrogen
A water molecule is partially cleaved on a palladium or platinum metal surface under hydrothermal conditions to form an active platinum species. The species is effective for C-H bond functionalization which can be applied for H/D-exchange reactions, C-C bond-forming reactions, and C-N bond-forming reactions.
Facile H/D Exchange at (Hetero)Aromatic Hydrocarbons Catalyzed by a Stable Trans-Dihydride N-Heterocyclic Carbene (NHC) Iron Complex
作者:Subhash Garhwal、Alexander Kaushansky、Natalia Fridman、Linda J. W. Shimon、Graham de Ruiter
DOI:10.1021/jacs.0c07689
日期:2020.10.7
pincer complexes have played an important role in homogeneous catalysis during the last ten years. Yet, despite intense research efforts, the synthesis of iron PCcarbeneP pincer complexes has so far remained elusive. Here we report the synthesis of the first PCNHCP functionalized iron complex [(PCNHCP)FeCl2] (1) and the reactivity of the corresponding trans-dihydride iron(II) dinitrogencomplex [(PCNHCP)Fe(H)2N2)]