Abstract:
The present disclosure provides compositions and methods for the preparation of ? chloroketones from carboxylic acids. In particular embodiments, the present disclosure provides procedures for the preparation of chiral ? chloroketone derivatives of amino acids.
Abstract:
An environmentally safe additive and vehicle system are provided for water-based and oil-based printing inks, paints, coatings and adhesives which can be rapidly transferred, dispersed, dispensed, spread, dried, and cured. The low cost, stable additive and vehicle system enhance multiple color, high speed printing with sharp, highly defined images and superior quality, and can be used on many different types of substrates, such as paper, paperboard, cardboard, clay coated board, foil plastic, glass, metal, wood, and composites. The additive may be formed by the reaction product of a photoinitiator, such as an UV-activated polyelectrolyte, and a monomer, such as an acrylate or a methacrylate in an aqueous solution. In other embodiments, the additive is formed from a carboxylic acid or anhydride and alkylalkanolamine monomer or a dialkylaminoalkyl acrylate or methacrylate monomer in an acqueous solution.
Abstract:
Compounds represented by the following general formula [I]: wherein A, R, X, Y and n are each as defined in the description; salts thereof, and insecticides/miticides characterized by containing one or more members selected from the above compounds and salts thereof as the active ingredient.
Abstract:
본 발명은 [ 11 C] 방사성 의약품의 제조방법에 관한 것으로, 구체적으로 나프탈렌계 유기 염기 존재 하에 페놀성 전구체의 [ 11 C] 메틸화 반응을 수행하는 단계를 포함하는, 방사성 의약품의 제조방법을 개시하고 있습니다. 본 발명의 제조방법은 [ 11 C] 메틸화 반응에 의해 페놀성 전구체로부터 방사성 의약품을 제조함에 있어서, 양성자 스폰지, 예컨대, 나프탈렌계 유기 염기를 촉매로 사용함으로써 알콜의 메틸화 반응을 촉진시킴은 물론 전구체의 용해도를 향상시켜 안정적이며 높은 수율로 방사성 의약품을 제조할 수 있다.
Abstract:
Cationic steroidal antimicrobial (CSA) compounds having amide functionality and methods of manufacturing such CSA compounds. The CSA compound can be a compound of Formula (I), Formula (II), Formula (III), or a salt thereof: where R 18 has the following structure: -R 20 -(C=0)-N-R 21 R 22 R 20 is omitted or substituted or unsubstituted alkyl, alkenyl, alkynyl, or aryl, and R 21 and R 22 are independently selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, or substituted or unsubstituted aryl, provided that at least one of R 21 and R 22 is not hydrogen.
Abstract:
The present invention provides a system and method of storing hydrogen (H 2 ) and releasing it on demand, comprising and making use of diaminoalkanes and alcohols, or aminoalcohols as liquid-organic hydrogen carrier systems (LOHC). 2-aminoethanol (AE) or its N-methyl derivative 2-(methylamino)ethanol undergo catalytic dehydrogenation to form a cyclic dipeptide (glycine anhydride - GA) or its N,N-dimethyl derivative ( N,N- dimethyl GA) with release of hydrogen. Similarly, ethylenediamine (ED) and ethanol undergo catalytic dehydrogenation to form N,N '-diacetylethylenediamine (DAE) with release of hydrogen. Glycine anhydride (GA) or N,N -dimethyl-GA may be hydrogenated back to 2-aminoethanol (AE) or 2-(methylamino)ethanol, respectively, each of which functions as a hydrogen storage system. N,N'-diacetylethylenediamine (DAE) may be hydrogenated back to ED and ethanol, which functions as a hydrogen storage system. These reactions may be catalyzed by a variety of compounds or complexes, including Ruthenium complexes as described herein.
Abstract:
Die Erfindung betrifft ein ein- oder mehrstufiges Verfahren zur Herstellung von Mono-, Di- und/oder Polyaminen aus Carbodiimidgruppen und gegebenenfalls auch andere Gruppen der Isocyanatchemie aufweisende Verbindungen durch Hydrolyse mit Wasser.
Abstract:
The present invention provides a carbon-containing catalyst support that includes at least a carbonaceous material and a thermosetting or sinterable polymer. The components are mixed and the polymer sintered or thermoset to provide a non-crushable, non-friable, and non-breakable composite. A catalytically active metal can be supported on the carbonaceous material prior to mixing, or on the composite after mixing and heating the mixture to sinter or thermoset the polymer.