3386-87-6Relevant articles and documents
Glycol (propionitrile) preparation method of the ether (by machine translation)
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Paragraph 0015; 0016, (2017/06/02)
The invention discloses glycol (propionitrile) preparation method of the ether, preparation steps are as follows: in order to ethylene glycol and acrylonitrile as the reaction raw materials, the reaction temperature 30 °C -70 °C, and the catalyst solution in the catalysis of the reaction generating glycol (propionitrile) ether, the catalyst solution is composite alkali catalyst aqueous solution, the aqueous solution of alkali catalyst composite by triethyl benzyl ammonium hydroxide aqueous solution is mixed with the aqueous solution of sodium hydroxide. Because the alkaline lower triethyl benzyl ammonium hydroxide aqueous solution and aqueous sodium hydroxide solution formed by mixing the aqueous solution of the composite alkali catalyst, so that the reaction solution in the alkaline greatly reduced, thus greatly reducing the generation of by-product double-c nitrile ether, such ethylene glycol-ether (propionitrile) molar yield will be greatly improved, molar yield can reach 90% or more, and can more easily purification to obtain high purity glycol (propionitrile) ether, its purity can reach 95% or more. (by machine translation)
Alkyl diol (double third nitrile base ) preparation method of the ether
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Paragraph 0058; 0060, (2017/03/08)
The invention provides a method for preparing alkyl diol (di-propionitrile) ether. The method comprises the steps of (1) carrying out condensation reaction on the alkyl diol and acrylamide so as to generate alkyl diol (di-propionamido) ether, wherein the solvent used in the condensation reaction is ketone, the temperature of the condensation reaction is 10-100DEG C, and the catalyst used in the condensation reaction is alkali metal hydroxide; and (2) dehydrating the alkyl diol (di-propionamido) ether under the action of a dehydrating agent in the presence of a solvent, so as to obtain the alkyl diol (di-propionitrile) ether, wherein the solvent is one of hydrochloric ether, nitrile and ether, the dehydrating agent is sulfoxide chloride, and the temperature of dehydration is 30-150 DEG C.
METHOD FOR PREPARING A DINITRILE COMPOUND
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Paragraph 0051, (2014/02/15)
Disclosed is a method for preparing a dinitrile compound. The method includes reacting an alcohol compound with a nitrile compound having a terminal carbon-carbon unsaturated bond under anhydrous conditions. A potassium alkoxide having 1 to 5 carbon atoms is used as a catalyst in the course of the reaction. According to the method, a high-purity dinitrile compound can be prepared in a simple manner within a short reaction time indicating high productivity.
METHOD FOR PREPARING DINITRILE COMPOUND
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Paragraph 0054-0057, (2014/02/16)
Disclosed is a method for preparing a dinitrile compound. The method includes reacting an alcohol compound with a nitrile compound having a terminal carbon-carbon unsaturated bond under anhydrous conditions. A potassium alkoxide having 1 to 5 carbon atoms is used as a catalyst in the course of the reaction. According to the method, a high-purity dinitrile compound can be prepared in a simple manner within a short reaction time indicating high productivity.
Synthesis and intrinsic blue fluorescence study of hyperbranched poly(ester-amide-ether)
Zhang, Yong,Fu, Qi,Shi, Wenfang
experimental part, p. 2452 - 2460 (2011/10/02)
A series of hyperbranched poly(ester-amide-ether)s (H-PEAEs) were synthesized via the A2+CB3 approach by the self-transesterification of ethyl ester-amide-ethers end-capped with three hydroxyl groups and ethyl ester group at two terminals. The molecular structures were characterized with 1H NMR and FT-IR spectroscopy. The number average molecular weights were estimated by GPC analysis to possess bimodal wide distribution from 1.57 to 2.09. The strong inherent blue fluorescence was observed at 330 nm for excitation and 390 nm for emission. Moreover, the emission intensity and fluorescence quantum yield increased along with the incorporated ether chain length, as well as almost linearly with the H-PEAE concentration in an aqueous solution. For comparing the fluorescence performance, the linear poly(ester-amide-ether) (L-PEAE) and hyperbranched poly(ester-amide) (H-PEA) were synthesized. The results showed that the coexistence of ether bond and carboxyl group in the molecular chain was essential for generating the strong fluorescence. However, the compact backbone of H-PEAE would be propitious to the enhancement of fluorescence properties.
STABILIZATION OF HYDROXYLAMINE CONTAINING SOLUTIONS AND METHOD FOR THEIR PREPARATION
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Page/Page column 15, (2009/05/28)
The invention relates to the use of amidoximes for prevention of or stabilization of hydroxylamine compounds against undesired decomposition.
NOVEL NITRILE AND AMIDOXIME COMPOUNDS AND METHODS OF PREPARATION
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, (2009/05/28)
The present application relates to semiconductor processing compositions comprising at least one compound containing at least one amidoxime functional group and to methods of using these compositions in semiconductor processing. The present application also describes the preparation of amidoximes for a semiconductor processing composition by (a) mixing a cyanoethylation catalyst, a nucleophile and an alpha-unsaturated nitrile to produce a cyanoethylation product; and (b) converting a cyano group in the cyanoethylation product into an amidoxime functional group.
Oligoribonucleotide synthesis by the use of 1-(2-cyanoethoxy)ethyl (CEE) as a 2′-hydroxy protecting group
Umemoto, Tadashi,Wada, Takeshi
, p. 9529 - 9531 (2007/10/03)
A novel method for the synthesis of oligoribonucleotide using 1-(2-cyanoethoxy)ethyl (CEE) as a 2′-hydroxy protecting group has been developed. A novel method for the synthesis of oligoribonucleotides using 1-(2-cyanoethoxy)ethyl (CEE) as a 2′-hydroxy protecting group has been developed. A CEE group was introduced to the 2′-position of N-acyl-3′,5′-O-silyl-protected ribonucleosides under acidic conditions in good yields. The 2′-O-CEE group was found to be stable in an aqueous or ethanolic ammonia and was quickly removed by treatment with anhydrous tetrabutylammonium fluoride (TBAF). A combination of the use of N-acyl and 2′-O-CEE protecting groups enabled a reliable and complete two-step deprotection, first with NH3-EtOH, then with TBAF in THF, without cleavage of internucleotidic linkages.
Omega-hydrofluoroalkyl ethers, precursor carboxylic acids and derivatives thereof, and their preparation and application
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Page 14, (2010/01/31)
Normally liquid, omega-hydrofluoroalkyl ether compounds (and selected mixtures thereof) have a saturated perfluoroaliphatic chain of carbon atoms interrupted by one or more ether oxygen atoms. The compounds can be prepare, e.g. by decarboxylation of the corresponding fluoroalkyl ether carboxylic acids and are useful, e.g., in cleaning and drying applications.
Comparative Study of Mono- and Di-substituted 14-Crown-4 Derivatives as Lithium Ionophores
Kataky, Ritu,Nicholson, Patrick E. Patrick,Parker, David
, p. 321 - 327 (2007/10/02)
14-Crown-4 derivatives bearing either one or two methoxy, methoxycarbonylmethyl or carbamoylalkyl substituents have been prepared in an attempt to obtain selective ionophores for lithium ions.Complexation with lithium has been fabricated and evaluated using the fixed interference method.The highest selectivity for lithium with respect to sodium is observed for a diamide derivative (630:1).
