Platinum‐Catalyzed CX (X = O, B, Cl, Si) Bond Formation Through CH Functionalization

Abstract

Low temperature and selective oxidation of unactivated alkanes through CH activation such as direct methane oxidation is a great challenge in chemical transformations, especially in the industry scale, and platinum has played a major role in the field. This article outlines significant achievements in the platinum‐catalyzed methane oxidation including the Shilov reaction and the Periana‐Catalytica system which provide one of the most promising approaches to the challenge. In addition to methane oxidation, some synthetically useful reactions have been developed under improved Shilov conditions, notably the terminal or regioselective CH oxidation of alkyl groups in various substrates. Platinum‐catalyzed CH borylation and silylation reactions are also discussed. Platinum‐catalyzed borylation of CH bonds of sterically congested arenes and fluorinated arenes is particularly noteworthy and it also complements the iridium chemistry in terms of chemo and regioselectivity.

Tuning the morphology, stability and optical properties of CsSnBr3 nanocrystals through bismuth doping for visible-light-driven applications

“…Particularly, some Bi-based and Sn-based perovskites have shown promising photocatalytic properties, and they were stable in water. [83][84][85] Therefore, in this investigation, the water stability of the nanocrystals was checked utilizing the recovered CSB ′ B powders aer the photocatalytic degradation of RhB dye that underwent XRD analysis (Fig. 11(a)).…”

Construction of Non‐Precious Metal Self‐Supported Electrocatalysts for Oxygen Evolution from a Low‐Temperature Immersion Perspective

“…However, the measured actual potential of oxygen evolution is higher than the theoretical value due to the presence of concentration polarization and electrochemical polarization [10,11] . Therefore, the development of highly active electrocatalysts to accelerate the OER process becomes a major challenge to improve the efficiency of hydrolysis [12–14] . Although precious metal catalysts (e.g., platinum, iridium, and ruthenium, etc.)…”