112-34-5Relevant articles and documents
Preparation method of alkyl diglycol (by machine translation)
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Paragraph 0031-0044, (2020/06/09)
The invention relates to a preparation method of alkyl diglycol with NRE (narrow distribution ethoxylate Narrow Range Ethoxylate) effect while increasing the reaction speed in the presence of a novel aluminum-based catalyst containing alkali metal or alkaline earth metal. (by machine translation)
POLYOL ETHERS AND PROCESS FOR MAKING THEM
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Paragraph 0069, (2011/05/14)
New polyol ether compounds and a process for their preparation. The process comprises reacting a polyol, a carbonyl compound, and hydrogen in the presence of hydrogenation catalyst, to provide the polyol ether. The molar ratio of polyol to carbonyl compound in the process is greater than 5:1.
POLYOL ETHERS AND PROCESS FOR MAKING THEM
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Page/Page column 7, (2010/03/31)
New polyol ether compounds and a process for their preparation. The process comprises reacting a polyol, a carbonyl compound, and hydrogen in the presence of hydrogenation catalyst, to provide the polyol ether. The molar ratio of polyol to carbonyl compound in the process is greater than 5:1.
HETEROCYCLIC AMINE CATALYST COMPOSITIONS FOR THE ALKOXYLATION OF ALCOHOLS TO GLYCOL ETHERS
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Page/Page column 8-9, 11, (2009/12/05)
Glycol ethers are made by a process in which an alcohol, an alkylene oxide and a catalytic amount of an aromatic, heterocyclic amine catalyst are contacted under reactive conditions. Representative catalysis include substituted and unsubsiituted pyridines and imidazoles. The process uses known oxides and alcohols, and produces more mono- and di- adduct products than does a corresponding process using a caustic catalyst. Moreover, the process can be conducted at a lower reaction temperature than a corresponding process using a caustic catalyst without sacrificing oxide conversion rates yet producing fewer carfoony! impurities.
DEGRADATION OF POLYCYCLIC AROMATIC HYDROCARBONS TO RENDER THEM AVAILABLE FOR BIODEGRADATION
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Page/Page column 5-8; 15-16, (2008/12/07)
A method for the degradation of polycyclic aromatic compounds is disclosed that involves dissolving ozone in a bipolar solvent comprising a non-polar solvent in which is of sufficiently non-polar character to solubilized the polycyclic aromatic compounds, and a polar-water-compatible solvent which is fully miscible with the non-polar solvent to form a single phase with the non-polar solvent. The bipolar solvent with dissolved ozone is contacted with the polycyclic aromatic compounds to solubilize the polycyclic aromatic compounds and react the dissolved polycyclic aromatic compounds with the ozone to degrade the dissolved polycyclic aromatic compounds to oxygenated intermediates. The bipolar solvent is then mixed with sufficient water to form separate non-polar and polar phases, the non-polar phase comprising the non-polar solvent and the polar phase comprising the non-polar solvent and the oxygenated intermediates. The polar phase is then diluted and incubated with bacteria to biodegrade the oxygenated intermediates.
Combinatorial synthesis of PEG oligomer libraries
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Page/Page column 9, (2010/02/15)
A simple chain-extending approach was established for the scale-up of the monoprotected monodisperse PEG diol materials. Reactions of THP-(OCH2CH2)n—OMs (n=4, 8, 12) with a large excess of commercially available H—(OCH2CH2)n—OH (n=1-4) under basic conditions led to THP-(OCH2CH2)n—OH (n=5-15). Similarly, Me-(OCH2CH2)n—OH (n=4-11, 13) were prepared from Me-(OCH2CH2)n—OMs (n=3, 7, 11). For the chain elongation steps, 40-80% yields were achieved through extraction purification. PEG oligomer libraries I and II were generated in 50-95% overall yields by alkylation or acylation of THP-(OCH2CH2)n—OH (n=1-15) followed by deprotection. Alkylation of Me-(OCH2CH2)n—OH (n=1-11, 13) with X—(CH2)m—CO2R (X=Br or OMs) and subsequent hydrolysis led to PEG oligomer library III in 30-60% overall yields. Combinatorial purification techniques were adapted to the larger-scale library synthesis. A total of 498 compounds, each with a weight of 2-5 g and a minimum purity of 90%, were synthesized.
METHOD FOR PRODUCING MONOALKYLENE GLYCOL MONOETHER
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Page/Page column 24-25, (2010/02/14)
The invention relates to a method for producing monoalkylene glycol monoether of general formulas (Ia) and (Ib), wherein a group R is hydrogen, a methyl-, ethyl-, propyl- or butyl group and R1 is a phenyl or a linear or branched C1-C10 alkyl group consisting in reacting an alcohol R1OH (II) with an alkylene oxide (III) in the presence of a heterogeneous catalyst in a liquid phase which contains in the form of a catalytically active agent at least one composition of formula (IV): M1pAnm x zH2O, wherein M1is hydrogen and/or one or several cations of IA, IIA, IIIA groups, a IVA, IB, IIB, IIIB, IVB, VB, VIB, VIIB or VIIIB lanthanide groups, An is an anion of formula [M2qOn(OH)2(3-n)], wherein M2 is at least one cationic element from a group of pnicogens As, Sb and Bi, the index q is a value equal to 1, the index n is a fractional or an integer number equal to or greater than 0 and strictly less than 3, z is equal to 0 or an integer or fractional number strictly greater than 0 and equal or less than 10, the index p is a value normalised to 1 and the index m is a number ranging from 1.2 to 8 stoichiometrically obtainable from the electric charge of one or several cations M1 and from the electric charge of an An anion taking in to account the index p whose value is normalised to 1 at a temperature ranging from a room temperature to 350 °C, at a pressure ranging from atmospheric pressure to 80 bar and at a molar ratio alcohol II/alkylene oxide III ranging from 3:1 to 15:1.
Manufacture and use of a herbicide formulation
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, (2008/06/13)
The invention pertains to a method for manufacture and use of a herbicidal formulation containing glyphosate and an acid. Specifically, phosphoric, citric, acetic, propionic, and phosphorous acid and their corresponding salts have been useful in this application. The acid based formulations offer lower glyphosate use rates than standard formulations.
Manufacture and use of a herbicide formulation
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, (2008/06/13)
The invention pertains to a method for manufacture and use of a herbicidal formulation of chlorinated carboxylic acid herbicides. A number of different solvents have been found useful in this application. Furthermore, the use of surfactants that act as solvents for the acid herbicides has been discovered. These formulations have shown superior herbicidal activity when compared to standard salt and ester forms.
Preparation of phenylazonaphthalenes
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, (2008/06/13)
A process for preparing aqueous preparations of azo dyes of the formula STR1 where R is hydrogen or C1 -C4 -alkyl and Kat≈ is the equivalent of a cation which derives from a tertiary amine of the ethanolamine or propanolamine series, by diazotization of an aniline of the formula STR2 with neopentylglycol dinitrite in an aqueous medium and coupling of the resulting reaction mixture with β-naphthol in the presence of a water-miscible diluent and of an amine comprises using an amine comprising a tertiary amine of the ethanolamine or propanolamine series.
