2-Ethoxy ethanol

Diglycolamine Systems. The Fluor Econamine process uses digl> co lamine (DGA) to sweeten natural gas. The active DGA reagent is 2-(2-tunino-ethoxy) ethanol, w hich is a primary amine. The reactions of DG, with acid gases are the same as for MEA. Degradation products from reactions with COS and CS2 can be regenerated in a reclaimer. 

Chemical Name 2-[2-[4-[2-methyl-3-(10H-phenothia2in-10-yl)propyl] - l-piperazinyl] ethoxy]-ethanol... 

B.5 parts of 1 -azaphenothiazine carboxylic acid chloride and 14 parts of piperidino-ethoxy-ethanol were introduced into 100 parts of chlorobenzene and the mixture boiled under reflux for 5 minutes. After cooling off the precipitated hydrochloride salt of piperidino-ethoxy-ethanol was filtered off on a suction filter. Water was added to the filtrate and the pH thereof adjusted to 5 to 6 with dilute HCI. The aqueous phase was then removed, a caustic soda solution added thereto and then extracted with ether. The ethyl extract waswashed with water, then dried with potash and the ether distilled off. 9.4 parts of the piperidino-ethoxy-ethyi ester of 1 -azaphenothiazine carboxylic acid were obtained. This product was dissolved in 20 parts of isopropanol and the solution neutralized with isopropanolic HCI. The monohydrochloride which precipitated out after recrystallization from isopropanol had a melting point of 160°Cto 161°C. 

CN 2-[2-(4-Dibenzo[fc/][l,4]thiazepin-l 1-yl-l-piperazinyl)ethoxy]ethanol fumarate (2 1)... 

Ethoxy acetylene 2-Ethoxy ethanol, see Cellosolve 2-Ethoxy ethylacetate, see Cellosolve acetate 0.79 2.4 <-7 lOOexp. 

Synthesis of complex 1. The pentadentate salen catalyst 1 was synthesized as described (9). In short, the tosylated 2-[2-(2-methoxyethoxy)-ethoxy]-ethanol 2 (10) was reacted with 2,4-dihydroxybenzaldehyde 3 to yield 4-alkoxy salicylaldehyde 4 after chromatographic purification (eq. 1). Subsequent condensation of 4 with 1,3-diaminopropanol yielded water-soluble salen ligand 5 in sufficient purity and 89% yield (11). The formation of an azomethine bond is indicated by a shift of the NMR signal for the carbonyl carbon from 194.4 ppm in aldehyde 4 to 166.4 ppm for the imino carbon in 5. The pentadentate ligand 5 was then treated with copper(ll) acetate in methanol to obtain the dinuclear copper(ll) complex 1 as a green solid (eq. 2) (11). 

Irradiation of a solid film prepared from the polymer 11 in air afforded photodegradation products which are soluble in 2-ethoxy-ethanol. IR spectra of the products show strong absorption bands attributed to Si-OH and Si-O-Si stretching frequencies. In contrast to the products from 10, these products show absorption due to the Si-H bond. This result indicates that some of the silenes would be formed in this system. The intense absorption at 254 nm in the UV spectrum again disappeared after UV-irradiation. 

Polyacrylamide gels were dissolved in 30% peroxide solution and added to a scintillation mixture in 1 1 2-ethoxy ethanol-toluene. After counting, the mixtures were bulked and evaporated intermittently with heat dining a 4 week period, and the accumulated peroxidised residues eventually exploded violently [1], A subsequent comment indicated that peroxidised materials may not necessarily have been formed, because solutions of organic materials in aqueous peroxide are themselves potentially explosive [2],... 

A good catalyst for this reaction is [FeH(CO)4], produced by the reaction of [Fe(CO)5] with OH-.348 Aldehydes were reduced by CO in 60 40 water 2-ethoxy-ethanol mixtures under mild condition (30-80 °C, 20 bar CO) with a [Rh6(CO)16]/diamine catalyst system.349 In aqueous... 

Scheme 18. Reagents and conditions (i) POCl3. heat, 7 h (ii) 1 M NaOH. ethoxy ethanol, heat 3 h EtI, heat, 1 h EtOH, 1 M NaOH, heat, 0.5 h (iii) H2NR3, EtOH, heat, 7 h.

Large macrocyclic phthalocyanines can be obtained from the condensation reactions of 2,5-diamino-l,3,4-thiadiazole <2006SC1801,2006MI837,20010L2153>. Diaminothiadiazole reacts with 5- z/-butyl-l,3-diiminoisoindoline in 2-ethoxy-ethanol at 135 °C for 24 h to give macrocycles 107 and 108 in 54% and 15% yields, respectively <20010L2153>. 

A series of unsymmetrical porphyrazines with thio-ethoxy(ethoxy) ethanol groups (S-polyetherol) appended to the periphery, which both coordinate metals and impart solubility to the macrocycle have been reported (50). These macrocycles show selective optical changes in response to specific metal ions, thus are of potential use in metal ion sensing. 

Partition Coefficients of nonvl-phenyl-poly-(ethoxy)-ethanol (NPE) Surfactants. The solubility of surfactants in water and hydrophobic solvents is well documented (11,12,22), but only a few attempts at measuring partition coefficients between immiscible liquids have been reported (2,4,9,10). Partition coefficients of surfactants are of theoretical interest because of their relation to observed surfactant properties such as emulsification, wetting and detergency. Partition coefficients (K ) may be also of considerable practical value for predicting surfactant recov and recycling in industrial processes. For example, in the cold water extraction of tar sand, an effective surfactant with a high Kp could be efficiently recycled in the process water and would not follow the bitumen into the upgrading stream. 

Synonyms Cellosolve acetate ethylene glycol monoethyl ether acetate EGEEA 2-ethoxy ethanol acetate 2-EEA EEA EEAc ethyl glycol acetate... 

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