Patent classifications
C07C69/24
Palladium Catalyst System Comprising Zwitterion And/Or Acid-Functionalyzed Ionic Liquid
The present invention concerns a catalyst system in particular a catalyst system comprising Palladium (Pd), a zwitterion and/or an acid-functionalized ionic liquid, and one or more phosphine ligands, wherein the Pd catalyst can be provided by a complex precursor, such as Pd(CH.sub.3COO).sub.2, PdCl.sub.2, Pd(CH.sub.3COCHCOCH.sub.3), Pd(CF.sub.3COO).sub.2, Pd(PPh.sub.3).sub.4 or Pd.sub.2(dibenzylideneacetone).sub.3. Such catalyst systems can be used for e.g. alkoxycarbonylation reactions, carboxylation reactions, and/or in a co-polymerization reaction, e.g. in the production of methyl propionate and/or propanoic acid, optionally in processes forming methyl methacrylate and/or methacrylic acid. Catalyst systems according to the invention are suitable for reactions forming separable product and catalyst phases and supported ionic liquid phase SILP applications.
INSECT REPELLENT COMPOUNDS AND COMPOSITIONS, AND METHODS THEREOF
The present invention relates to monoterpenoid and phenylpropanoid containing derivative compounds, methods of making the compounds, compositions comprising the compounds, and methods of repelling pests using the compounds and/or compositions.
INSECT REPELLENT COMPOUNDS AND COMPOSITIONS, AND METHODS THEREOF
The present invention relates to monoterpenoid and phenylpropanoid containing derivative compounds, methods of making the compounds, compositions comprising the compounds, and methods of repelling pests using the compounds and/or compositions.
NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
A nonaqueous electrolyte secondary battery includes a positive electrode including a positive electrode mix layer, a negative electrode, and a nonaqueous electrolyte. The positive electrode mix layer contains a lithium transition metal oxide containing zirconium (Zr) and also contains a phosphate compound. The nonaqueous electrolyte contains a linear carboxylate. According to this configuration, the nonaqueous electrolyte secondary battery, which has excellent low-temperature output characteristics, can be provided. Thus, the nonaqueous electrolyte secondary battery is, for example, a power supply for driving a mobile data terminal such as a mobile phone, a notebook personal computer, a smartphone, or a tablet terminal and is particularly suitable for applications needing high energy density. Furthermore, the nonaqueous electrolyte secondary battery is conceivably used for high-output applications such as electric vehicles (EVs), hybrid electric vehicles (HEVs), and electric tools.
METHOD OF REARRANGEMENT OF THE MOLECULAR STRUCTURE OF ISOMERS OF TEXANOL
Disclosed is a method of rearrangement of the molecular structure of isomers of TEXANOL, characterized in that two isomers in TEXANOL is subjected to rearrangement of the molecular structure at a certain temperature and pressure, and 2,2,4-trimethyl-1,3-pentanediol-3-isobutyrate and 2,2,4-trimethyl-1,3-pentanediol-1-isobutyrate in TEXANOL following the rearrangement are in a mass ratio of 31.81-38.65:60.80-67.65. The process of the present invention is simple, no catalyst and other aids are required, and the content of the primary ester in TEXANOL can be significantly increased, so as to improve the volatilization rate of TEXANOL in a paint film, thereby reducing the drying time of the paint film and increasing the number of scrubbing of the paint film, such that the construction conditions of aqueous acrylic paints for exterior walls become relaxed, and the occurrence of floating, whitening, efflorescence, and cracking of the paint film due to water absorption by the non-dried or partly dried paint film during moist or rainy periods is avoided.
METHOD OF REARRANGEMENT OF THE MOLECULAR STRUCTURE OF ISOMERS OF TEXANOL
Disclosed is a method of rearrangement of the molecular structure of isomers of TEXANOL, characterized in that two isomers in TEXANOL is subjected to rearrangement of the molecular structure at a certain temperature and pressure, and 2,2,4-trimethyl-1,3-pentanediol-3-isobutyrate and 2,2,4-trimethyl-1,3-pentanediol-1-isobutyrate in TEXANOL following the rearrangement are in a mass ratio of 31.81-38.65:60.80-67.65. The process of the present invention is simple, no catalyst and other aids are required, and the content of the primary ester in TEXANOL can be significantly increased, so as to improve the volatilization rate of TEXANOL in a paint film, thereby reducing the drying time of the paint film and increasing the number of scrubbing of the paint film, such that the construction conditions of aqueous acrylic paints for exterior walls become relaxed, and the occurrence of floating, whitening, efflorescence, and cracking of the paint film due to water absorption by the non-dried or partly dried paint film during moist or rainy periods is avoided.
Catalyst system
The present invention provides a catalyst system capable of catalyzing the carbonylation of an ethylenically unsaturated compound, which system is obtainable by combining: a) a metal of Group VIB or Group VIIIB or a compound thereof, b) a bidentate phosphine, arsine or stibine ligand, and c) an acid,
wherein the ligand is present in at least a 2:1 molar excess compared to the metal or the metal in the metal compound, and that the acid is present in at least a 2:1 molar excess compared to the ligand, a process for the carbonylation of an ethylenically unsaturated compound, a reaction medium, and use of the system.
Catalyst system
The present invention provides a catalyst system capable of catalyzing the carbonylation of an ethylenically unsaturated compound, which system is obtainable by combining: a) a metal of Group VIB or Group VIIIB or a compound thereof, b) a bidentate phosphine, arsine or stibine ligand, and c) an acid,
wherein the ligand is present in at least a 2:1 molar excess compared to the metal or the metal in the metal compound, and that the acid is present in at least a 2:1 molar excess compared to the ligand, a process for the carbonylation of an ethylenically unsaturated compound, a reaction medium, and use of the system.
Ester formation of fatty acid and hydroxycarboxylic acid
A process for the transesterification of a fatty acid ester of a lower alcohol and a salt of hydroxycarboxylic acid without making use of organic solvents is provided. The process can also be carried out without added anionic surface active agents.
Ester formation of fatty acid and hydroxycarboxylic acid
A process for the transesterification of a fatty acid ester of a lower alcohol and a salt of hydroxycarboxylic acid without making use of organic solvents is provided. The process can also be carried out without added anionic surface active agents.