Mesoporous silica as phase transfer agent in the biphasic oxidative cleavage of alkenes using triazole complexes of ruthenium as catalyst precursors

Synthesis and Applications of Periodate for Fine Chemicals and Important Pharmaceuticals

“…447−452 The cleavage of alkynes to aldehydes, 437,453 and the oxidative cyclization of dienes are further important innovations, 454,455 as well as the immobilization of the ruthenium on composite materials, 352 or on silica. 456,457 The application of ruthenium catalysts in natural product synthesis has been reviewed thoroughly. 458−460 Sitagliptin was innovated by MSD and is used as medication for diabetes mellitus type 2.…”

“…Recent computational studies indicate a noninnocent role of periodate in the oxidative cyclization of 1,5-dienes, which too could affect other reactions . The emerging aldehydes are usually oxidized to carboxylic acids, but recent developments enable the halt of the oxidation at this or the diol stage. − The cleavage of alkynes to aldehydes, , and the oxidative cyclization of dienes are further important innovations, , as well as the immobilization of the ruthenium on composite materials, or on silica. , The application of ruthenium catalysts in natural product synthesis has been reviewed thoroughly. − …”

Ru on Modified Carbon Submicrometric Spheres as Novel Catalysts for the Oxidative Cleavage of Oleic Acid with N‐Methylmorpholine‐N‐Oxide as Green Oxidizing Agent

“…Moreover, current heterogeneous catalysts display a poor activity as a result of the poor contact amid the UFA and the active phase. In addition, bad performances of heterogeneous catalysts are related as well to loss of activity because of leaching issues [16–18] . In this matter we explored (i) the possibility to develop our own carbon supports and (ii) the modification of their textural properties by simple thermal treatments.…”

“…In addition, bad performances of heterogeneous catalysts are related as well to loss of activity because of leaching issues. [16][17][18] In this matter we explored (i) the possibility to develop our own carbon supports and (ii) the modification of their textural properties by simple thermal treatments. To avoid polluting methodologies and to conceive a greener catalytic system, a hydrothermal eco-friendly carbonization procedure was selected to synthesize carbon submicrometric particles.…”

Nanosilica Extracted from Hexafluorosilicic Acid of Waste Fertilizer as Reinforcement Material for Natural Rubber: Preparation and Mechanical Characteristics

“…In the pharmaceutical industry, silica is used as a carrier for some proprietary medicines [12,13,14]. In the organic chemical industry, silica acts as a catalyst for some organic reactions, helps acceleration rates, and improves reaction yields [15,16,17,18]. To meet the increasing demand for silica in industrial applications, many studies focused on the fabrication of silica from different sources [19,20,21,22,23,24,25,26,27,28].…”