Glycollic acid methyl ester

Using azolides, thiazolidindiones can be prepared by condensation of alkoxy-carbamoylimidazoles obtained in situ from O-alkylhydroxylamines and CDI with thio-glycolic acid methyl ester or the imidazolide of thiolactic acid obtained in situ from thiolactic acid and CDI [121]... 

Polypropylene glycol, particulate hydrophobic silica, and a fatty acid methyl ester, or an olefin or linear paraffin as a liquid diluent, are proposed for well-stimulation jobs [357]. 

Diethylene glycol adipate Methyl esters of fatty acids up to C24... 

Polyglycol 174-500 Poly (styrene glycol), mol. wt. 500 Polyglycol 174-750 Poly (styrene glycol), mol. wt. 750 Abalync Abietic acid, methyl ester... 

Hydrogenated abietic acid, methyl ester Hydrogenated abietic acid, ethylene glycol ester... 

A mixture of 11.8 g of (+/-)-3a,6,7,7a-tetrahydro-4-methyl-2-oxo-ip-indaheptanoic acid methyl ester, 27 ml of ethylene glycol and 300 mg of p-toluene sulfonic acid mono-hydrate in 600 ml of benzene was refluxed with stirring for 18 hours using a Dean-Stark trap to separate the water formed in the reaction. The reaction mixture was cooled and added to 300 ml of cold 5% potassium bicarbonate. The aqueous layer extracted twice with 2 1 benzene-hexene. The combined organic fractions were washed 3 times with saturated aqueous NaCI, dried over sodium sulfate and evaporated to dryness... 

To 5.69 g of this acetal in 410 ml of t-butanol and 11 ml of water was added a mixture of 5.80 g of potassium carbonate, 22,8 g of sodium periodate, and 270 mg of potassium permanganate in 1230 ml of water. The reaction mixture was stirred at 20-25°C for 20 hours and concentrated in vacuo to remove t-butanol. Ethylene glycole (0.5 ml) was added and reaction mixture extracted with 1 1 ether-benzene to remove neutral material. The aqueous layer acidified with solid sodium dihydrogen phosphate and extracted 4 times with 1 1 ethyl acetate-benzene. The organic layer was dried over sodium sulfate and evaporated to dryness in vacuo affording (+/-)-3-acetyl-2a-(2-carboxyethyl)-5-oxo-ip-cyclopentaneheptanoic acid methyl ester, 5-cyclic ethylene acetal as a mixture of the 3a and 3p isomers. 

J. Kramer, R. Fouchard, et al., Difference in chromatographic properties of fused silica capillary columns, coated, crosslinked, bonded or crosslinked and bonded with polyethylene glycols (Carbowas 20 M) using complex fatty acid methyl ester mixtures, J. Chromatogr. Sci., 23 54-56 (1985). 

Dow also developed polyurethane foams from polyols via hydroformylation of fatty acids. The foams have properties which are comparable to foams from petrochemicals in terms of density and flexibility. The advantages of using sustainable feedstocks in viscoelastic foams are increased load bearings and tensile and tear properties [39, 40]. The hydroformylation and consecutive hydrogenation of fatty acids derived from seed oil can also be used to form low viscosity polyester polyols. Therefore, fatty acid methyl esters are transesterified with diols, e.g., glycol (Scheme 12). The polymer contains chemically active hydroxy groups which can be used for polyurethanes in coating applications [41]. 

Wong and co-workers [22] also applied the methodology in the preparation of a library of neomycin B mimetics (Fig. 6). Two libraries were prepared by a multiple-component condensation of neamine derived aldehyde, f-butyl isocyanide or isocyanoacetic acid methyl ester, CBZ-N amino acids (xl3) and a glycine conjugated polyethylene glycol methyl ether. The products of the reaction were isolated by precipitation. 

Figure 1.13 GC analysis of organic acid methyl esters in a) standard solution, b) Chardonnay wine, c) Asti sparkling wine. 1. methyl lactate, 2. dimethyl succinate, 3. dimethyl maleate (i.s.), 4. dimethyl malate, 5. dimethyl tartrate, 6. trimethyl citrate. Chromatographic conditions poly(ethylene) glycol fused silica capillary column (30m x 0,25mm 0.25 xm), injector and detector temperature 250°C, flame ionization detector. Oven program 2min at 50 °C, from 50 to 200 °C at rate 4°C/min, 200°C isotherm for lOmin (Di Stefano and Bruno, 1983)...

P liquid bonded Poly(alkylene glycol) 240 Fatty acid methyl esters, phenols, fragrance oils, and aldehydes/ketones... 

CHLOROCARBONIC ACID, METHYL ESTER (79-22-1) Forms explosive mixture with air (flash point 54°F/12°C). Reacts with moisture in air, forming hydrogen chloride fumes. Reacts slowly with water or steam, forming hydrochloric acid, carbon dioxide gas, and methanol. Violent reaction with alkali metals, dialkylzincs, dimethyl formamide, dimethyl sulfoxide, ethers, ethylene glycol diethyl ether, strong oxidizers. Incompatible with strong bases, alcohols. Corrodes metals in the presence of moisture. Attacks some plastics, rubber, and coatings. 

ISOTHIOCYANIC ACID, METHYL ESTER (556-61-6) Forms explosive mixture with air (flash point 90°F/32°C). Incompatible with strong acids, caustics, chlorates (e.g., potassium chlorate, sodium chlorate), ammonia, amines, amides, alcohols, glycols, caprolactam solution, nitrates, nitric acid, organic peroxides, peroxides, strong oxidizers. 

Soares CMF, De Castro HF, Santana MHA et al. (2002) Intensification of lipase performance for long-term operation by immobilization on controlled pore silica in presence of polyethylene glycol. Appl Biochem Biotechnol 98-100 863-874 Soumanou MM, Bornschener UT, Menge U (1997) Synthesis of structured triglycerides firom peanut oil with immobilized lipase. JAOCS 74 427-433 Soumanou MM, Bomscheuer UT (2003) Improvement in Upase-catalyzed synthesis of fatty acid methyl esters from sunflower oil. Enzyme Microb Technol 33(1) 97-103 Straathof AJJ, Panke S, Schmid A (2002) The production of fine chemicals by biotransformations. Curr Opin Biotechnol 13 548-556... 

Dodecanedioic acid 1,12-Dodecanedioic acid. See Cl 2 dibasic acid Dodecanoic acid, diester with 1,2,3-propanetriol. See Glyceryl dilaurate Dodecanoic acid 1,2-ethanediyl ester. See Glycol dilaurate Dodecanoic acid 2-(2-hydroxyethoxy) ethyl ester. See PEG-2 laurate Dodecanoic acid, 2-hydroxypropyl ester. See Propylene glycol laurate Dodecanoic acid methyl ester. See Methyl laurate Dodecanoic acid, mixed triesters with octanoic acid, decanoic acid, and 1,2,3-propanetriol. See Captylic/capric/lauric triglyceride Dodecanoic acid, monoester with 1,2-propanediol. See Propylene glycol laurate... 

Synonyms Acetic acid-4-methylphenyl ester 4-Acetoxytoluene p-Acetoxytoluene Acetyl p-cresol p-Cresol acetate p-Cresylic acetate 4-Methylbenzoic acid methyl ester 4-Methyl phenyl acetate p-Methylphenyl acetate Paracresyl acetate p-Tolyl acetate p-Tolyl ethanoate Classification Aromatic ester Empirical C9H10O2 Formula CH3CO2C6H4CH3 Properties Colorless liq., anise sweet fragrant odor sol. in fixed oils, propylene glycol misc. with alcohol, ether insol. in water, glycerin m.w. 150.18 dens. 1.047 b.p. 210-211 C dec. 360 C flash pt. 90 C ref. index 1.5010 Toxicology LD50 (oral, rat) 1900 mg/kg, (skin, rabbit) 2100 mg/kg mod. toxic by ing. and skin contact irritant TSCA listed Precaution Combustible Hazardous Decomp. Prods. Heated to decomp.. 

Decanoic acid, 2,2-dimethyl-1,3-propanediol diester. See Neopentyl glycol dicaprate Decanoic acid, ester with 2,2 -[oxybis (methylene)] bis [2-(hydroxymethyl)-1,3-propanediol] octanoate pentanoate. See Dipentaerythrityl hexacaprylate/hexacaprate Decanoic acid, ester with 1,2,3-propanetriol octanoate. See Glyceryl decanoate octanoate Decanoic acid ethyl ester. See Ethyl decanoate Decanoic acid, methyl ester. See Methyl caprate... 

Hydroxyoctadecanoic acid, dimethyloctyl ester. See Isodecyl hydroxystearate 12-Hydroxyoctadecanoic acid, 2-ethylhexyl ester. See Octyl hydroxystearate Hydroxyoctadecanoic acid, 2-hydroxyethyl ester. See Glycol hydroxystearate 12-Hydroxyoctadecanoic acid, methyl ester. 

Synonyms Ethyl 0-(o-(methoxycarbonyl) benzoyl) glycolate Ethyl o-(methoxycarbonyl) benzoyloxyacetate Glycolic acid, ethyl ester, methyl phthalate Phthalic acid, monomethyl ester, ester with ethyl glycolate Empirical C13H14O6... 

Oleic acid, 12-hydroxy-. See Ricinoleic acid Oleic acid, lauryl ester. See Lauryl oleate Oleic acid, methyl ester, cis- cis-Oleic acid, methyl ester. See Methyl oleate Oleic acid, monoester with decaglycerol. See Polyglyceryl-10 oleate Oleic acid, monoester with oxybis (propanediol). See Polyglyceryl-2 oleate Oleic acid, monoester with 1,2-propanediol. See Propylene glycol oleate Oleic acid, monoester with triglycerol. See Polyglyceryl-3 oleate... 

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