Patent classifications
B01J2231/005
Method of preparing L-homoserine
Provided is a method of preparing L-homoserine, the method including contacting an L-homoserine derivative with a solid acid catalyst.
Catalyst for curable compositions containing hexahydrotriazine structural units
A compound containing at least one hexahydrotriazine unit of formula (I) having at least one amidine or guanidine group and to the use thereof as a catalyst for the crosslinking of a functional compound, in particular a polymer including silane groups. The compound contains at least one hexahydrotriazine unit of formula (I) is producible in a simple process from readily available feedstocks, odorless at room temperature, non-volatile and largely non-toxic. The compound accelerates the crosslinking of functional polymers surprisingly well and by simple variation of the substituents is variable such that it has very good compatibility in different polymers as a result of which such compositions do not have a propensity for migration-based defects such as separation, exudation or substrate contamination.
ACRIDINIUM-BASED PHOTOREDOX CATALYSTS, SYNTHESIS AND USE THEREOF IN OXIDATIVE CLEAVAGE OF C-O BONDS
The present invention belongs to the field of catalytic chemistry, and more specifically to catalysed oxidation of lignin. It also relates to synthesis of catalyst compounds.
The present invention relates to new acridinium-based photoredox catalyst compounds and their use thereof in a chemical reaction, preferably in depolymerisation of lignin models and ultimately lignin. The invention also relates to the method of synthesis of the new acridinium-based photoredox catalyst compounds according to the invention.
Tris(disilanyl)amine
A method for making tris(disilanyl)amine. The method comprises steps of: (a) contacting a disilanyl(alkyl)amine with ammonia to make bis(disilanyl)amine; and (b) allowing bis(disilanyl)amine to produce tris(disilanyl)amine and ammonia.
METHOD FOR PRODUCING CARBON MONOXIDE
The present invention concerns a method of production for carbon monoxide using a derivative of formic acid, in particular an alkyl formate.
It also concerns a method chosen from among, the method of production of methanol, the method of production of acetic acid (Monsanto and Cativa methods), the method of hydroformylation of olefins (oxo and aldox method, the method of production of hydrocarbons (Fischer-Tropsch method), or the method of carbonylation of nickel (Mond method), comprising a step of production of carbon monoxide using an alkyl formate of formula (I) by the method according to the invention.
It further concerns a “CO pump” or “CO liquid storage” method comprising a step of production of carbon monoxide using an alkyl formate of formula (I) according to the method of the invention.
Enhanced Reduction Bioremediation Method Using In-situ Alcoholysis
The present subject matter relates to a composition for in-situ remediation of soil and aquifer comprising of a water miscible oil; a solvent (for dissolving the vegetable oil to form a solution); and a catalyst (selected from enzymes biocatalysts, particularly lipases, alkaline compounds, heat or combinations thereof). The present subject matter provides a process for the preparation of the composition and application of the same for surface remediation. Further, the present subject matter provides an in-situ alcoholysis remediation method to reduce contaminant concentrations in aquifer and soil by enabling the generation of both soluble and slowly fermenting electron donors required for the anaerobic remediation of organohalide compounds contaminating soils and groundwater. The method of remediation includes mixing an engineered water-soluble oil or water miscible oil with a solvent and adding a catalyst to groundwater to promote the formation of fatty acid alkyl esters, carboxylic acid salts and glycerol.
Composition and a method of making and use of such composition
A composition and method of making such a composition that has application in the hydroprocessing of hydrocarbon feedstocks. The method comprises selecting an organic additive by the use of a correlation model for predicting catalytic activity as a function of a physical property that is associated with the organic additive and incorporating the organic additive into a support material to provide the additive impregnated composition.
Condensation reaction and/or addition reaction curable coating composition
Provided herein is a coating composition curable by condensation and/or addition reactions and including (A) at least one polymer as binder, (B) at least one crosslinking agent that can be reacted by condensation and/or addition reaction with component (A), and (C) at least one specific complex as catalyst. Also provided herein is a use of the complex for catalyzing the curing of coating compositions curable by condensation and/or addition reaction.
ALPHA ALKYLATION OF ALDEHYDE WITH A POLYCYCLIC OLEFIN
The alpha alkylation of an aldehyde with a polycyclic olefin followed by a ring opening step is presented in order to provide a compound of formula (I) in the form of any one of its stereoisomers or a mixture thereof and where in R represents a hydrogen atom or C.sub.1-8 linear alkyl group; R.sup.1, R.sup.2, R.sup.3, and R.sup.4 represent, when taken separately, independently of each other, a hydrogen atom or a C.sub.1-2 linear alkyl group or a C.sub.3-4 linear or branched alkyl group; or R.sup.2 and R.sup.3, when taken together, represent a C.sub.4-10 linear, branched or cyclic alkanediyl group and n is 1 or 2 is presented.
##STR00001##
Method for the synthesis and isolation of facial-tris-homoleptic phenylpyridinato iridium (III) photocatalysts
Methods of synthesizing and isolating facial-tris-homoleptic phenylpyridinato iridium (III) photocatalysts are disclosed. Also disclosed are methods of recovering excess 2-phenylpyridine ligands from said syntheses.