N-Ethyl ethanolamine

This uv curing investigation was extended to evaluate a wider range of amine acrylates which had been EB cured. Under these conditions there are no complications due to the presence of photoinitiator. The additional amine acrylates investigated included those derived from N-ethyl ethanolamine, N-methyl ethanolamine and dimethyl-amine. During this study additional features were monitored from the infra-red data. 

The rates of loss do not correlate with the rates of increase in the hydroxyl index for these systems or with the photoyellowing and uv phenomena. This indicates that the mechanism of oxidation of the amine functionality is complex. An additional feature of interest is the profile of this band loss as related to terminal amine structure. In the simple alkyl substituted systems namely diethyl, dimethyl and dibutyl there is an initial rapid loss followed by a slowing down of the rate of decrease on prolonged irradiation. However, with the oxygen containing systems namely morpholine, N-ethyl ethanolamine and N-methyl ethanolamine the rate of decrease is linear with irradiation time. Evidently, there must be two different mechanisms in operation here. The loss of these infra-red absorption bands may be due to a process of dealkylation via oxidation (see reactions later). The band situated at 2978 cm"l exhibited similar behaviour although the extent of the loss was less than that observed with the previous band and the order of rate loss was marginally different. 

For many years such media have been based on strong salt solutions, e.g. calcium chloride brines. Sodium dichromate has been used (seep. 17 26), but recently other inhibitors have been claimed to be effective. One patent quotes N-alkyl-substituted alkanolamines, e.g. 2-ethyl ethanolamine -I- BTA at pH A mixture of hydrazine hydrochloride -i- BTA has been claimed as well as a mixture of gelatin -h triethanolamine -h potassium dihydrogen phosphate . Other examples are to be found in the patent literature and the above are quoted to illustrate the diversity of chemicals that may be used. 

PGIP, purified fi om P.vulgaris hypocotyls [11], was immobilized to the sensor ch via amine coupling. A continuous flow of HBS buffer (5 pl/min) was mantained over the sensor surface. The carboxylated dextran matrix of the sensor surface was first activated by a 6-min injection of a mixture of N-hydroxy-succinimide and N-ethyl-N - (3-diethylaminopropyl) carbodiimide, followed by a 7-min injection of PGIP (lOng/pl in 10 mM acetate, pH 5.0). Hie immobilization procedure was con leted by a 7-min injection of 1 M ethanolamine hydrochloride to block the remaining ester groups. 

In analogous fashion, ester interchange between methyl benzilate and N-ethyl-N-n-propyl-ethanolamine yields benapryzine (63). 5... 

The surface matrix of a carboxymethylated sensor chip CMS (Pharmacia Biosensor, Uppsala, Sweden) was activated by injection of 35 pL of 0.05 M N-hydroxy-succinimide (NHS)/0.2 M N-ethyl-N (dimethylaminopropyl)carbodiimide (EDC). The BIAcore IFC forms four parallel flow cells on the sensor chip. Three of them were derivatized with 40 mM cystamin-dihydrochloride/ethanolamine in the ratios... 

N, N-Dimethylaminoethanol P-Dimethylaminoethyl alcohol N,N-Dim-ethyl ethanolamine N,N-Dimethyl-2-hydroxyethylamine DMAE DMEA Ethanol, 2-(dimethylamino)- P-Hydroxyethyidimethylamine... 

N-(p-Ethoxycarbonylphenyl)-N -ethyl-N -phenylformamidine Ethyl phenyl ethanolamine N,N-Ethylphenylethanolamine N-Ethyl-N-phenylethanolamine. See Phenylethylethanolamlne Ethyl phthalate. See Diethyl phthalate Ethyl polysilicate. See Polydiethoxysiloxane Ethyl propanoate. See Ethyl propionate... 

CAS 92-50-2 EINECS/ELINCS 202-160-9 Synonyms Ethanol, 2-(ethylphenylamino)- 2-(N-Ethylanilino) ethanol Ethyl (P-hydroxyethyl) aniline N-Elhyl-N-(2-hydro) ethyl) aniline 2-(Ethylphenylamino) ethanol Ethyl phenyl ethanolamine N,N-Ethylphenylethanolamine N-Ethyl-N-phenylethanolamine N-(2-Hydroxyelhyl)-N-ethylaniline PEEA Classification Aromatic amine Empirical C,oH,5NO Famula C H5N(C2H5)C2H,OH... 

Diethylenetriamine Ethanolamine Triethanolamine, Tri-isopropanolamine 2-Dimethylamino-ethanol, 2-Diethyl-amino-Aziridine Pyrrolidine N-Methylpyrrolidone Piperidine, N-Methyl-, N-Ethyl-piperidine Triethylenediamine... 

N-2-Chloroethylfluoroacetamide was also prepared by the direct action of 2 mol. of fluoroacetyl chloride on ethanolamine, although we carried out this reaction with the intention of preparing 2-(fluoroacetamide)ethyl fluoroacetate,... 

The title compounds were also synthesized from quinazoline precursors through the formation of their 1,4-oxazine rings. N-Methylisatoic anhydride was first condensed with ethanolamine to give N-(2-hydroxyethyl)-2-methylaminobenzamide (580). Cyclization of the latter with ethyl pyruvate gave quinazoline derivatives 581 which, upon hydrolysis and dehydrative cyclization with l-methyl-2-chloropyridinium iodide, afforded the l,4-oxazines[3,4- ]quinazoline (582) (8QJHC1163). 

Also, the primary amine moities of polar lipids catalyze the aldol condensation of Cm-Cig aldehydes resulting from plasmalogen hydrolysis, thus forming a,3-unsaturated aldehydes (l2t). Phosphatidyl ethanolamine reacted with propanal and n-hexanal forming phosphatidyl l-(2-hydroxyethyl)-2-ethyl-3,5-dimethyl pyridinium, and phosphatidyl-1-(2-hydroxy ethyl)-2-hexyl-3,5-dipentyl pyridinium, respectively (125). The peridinium ring is formed by the reaction between one mole of amino-N of phosphatidyl ethanolamine and three moles of n-alkanals. The same reaction took place in the synthesis of substituted pyridines by condensation of carbonyl compounds with ammonia (126, 127). 

Lemire et al. (32) reported a quantitative method for the determination of IV-ethyl- and A-methyldi-ethanolamine, the hydrolysis products of HN-1 and HN-2, in urine using LC/ESI/MS/MS on a triple sector quadrupole instrument. The analytes were concentrated from urine by SPE on a strong cation exchanger. In order to obtain good peak shapes, 73% 3mM ammonium hydroxide (pH 10.5) - 27 % methanol was used as the mobile phase for LC. Isotope dilution ([13C]4-/V-Me and N-Et diethanolamines) was used to compensate for inherent variabilities. Detection was by MRM, monitoring the transition MH+ —> [MH-H20]+ for each analyte. The limits of detection were 0.4 ng/ml for V-ethyldiethanolaminc and 1 ng/ml for N-methyldiethanolamine. An interferent was present in urine with similar retention time and nominal mass characteristics as /V-mclhyldiclhanolaminc. 

Kvaerner Process Technologies Butanediol, 1,4-Butyraldehyde, n and i Dimethylformamide Ethanolamines Ethyl acetate Isooctane Methanol Methylamines Linde AG... 

Ethylenimine is conveniently prepared from ethanolamine by heating the inner salt of the sulfate ester with aqueous alkali (37%). The method has been applied to other /3-amino alcohols to form the C-alkyl homologs of ethylenimine in which one to three of the four hydrogens may be substituted. The general procedure is illustrated by the synthesis of 2,2-dim ethyl ethylenimine (51%). The N-alkyl analogs can be made by treating the N-alkylethanolamine hydrochlorides with chlorosulfonic acid followed by the action of base on the intermediate sulfuric acid esters, as in the preparation of N-ethylethylenimine (70%). ... 

Gramicidin A, however, is attacked by JV -bromoacetamide (NBA) and N-bromosuccinimide (NBS) (Gross and Witkop, unpublished observation). In 50 % aqueous ethyl alcohol at room temperature 5 % of the peptide bonds (20% of the tryptophyl peptide bonds) are cleaved with NBS. Methyl alcohol must be avoided because it opens the spirodioxindole lactone from oxidized tryptophan to the ester even at room temperature. The cleavage mixture separates on electrophoresis (pH = 2.5, sodium-formate buffer) into four ninhydrin-positive components of which the fastest migrating one was identified as ethanolamine. Dinitrophenylation showed leucine and alanine to be additional NHs-terminals of the released fragments. 

Bases Alumina, see p-Toluenesulfonylhydrazine. Dehydroabietylamine. 1,5-Diazabicyclo [4.3.0]nonene-5. 1,4-Diazabicyclo[2.2.2]octane. l,S-Diazabicyclot5.4.0]undecene-5. 2,6-Di-/-butylpyridine. N,N,-Diethylglycine ethyl ester, see /-Amyl chloroformate. 2,6-Dimethyl-piperidine. Ethanolamine. Lithium diisopropylamide, see Diphenylsulfonium isopropylide. Lithium nitride. Magnesium methoxide. N-Methylmorpholine. Piperidine. Potassium amide. Potassium hydroxide. Potassium triethylmethoxide. Pyridine. Pyrrolidine. Sodium methoxide. Sodium 2-methyl-2-butoxide. Sodium thiophenoxide. Thallous ethoxide. Triethyla-mine. Triphenylphosphine, see l-Methyl-2-pyrrolidone. 

A9(l 1 )-Estrone methyl ether, 84-85 Etard oxidation, 62 Ethanalation, 73 Ethanolamine, 146 Ether cleavage, 7 Ethoxyacetyl chloride, 137 N-Ethoxycarbonylazepine, 103 N-Ethoxycarbonyl-2-ethoxy-l,3-dihydroquin-oline(EEDQ), 137 Ethoxyketene, 137-138 Ethylamine, 186 Ethyl azidoformate, 138 Ethylbenzene, 328 Ethylbenzenes, 15 Ethyl bromide, 159 Ethyl bromoacetate, 26, 28, 236 Ethyl 4-bromocrotonate, 236 Ethyl bromocyanoacetate, 237 Ethyl chlorodiazoacetate, 222... 

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