Didodecyl ether

Dilauryl ether (didodecyl ether) n. A lubricant for plastics processing. 

Dodecyl heptaoxyethylene ether Copper didodecyl sulfate... 

It has been found that the combination of Lewis acids and surfactants is particularly effective for catalyzing Diels-Alder reactions in water. The effect of micelles of SDS, CTAB, dodecyl heptaoxyethy-lene ether (Q2E7), and copper and zinc didodecyl sulfate [M(DSb] on the Diels-Alder reaction of 3-(p-substituted phenyl)- l-(2-pyridyl)-2-propen-l-ones (Figure 12.1) with cyclopentadiene was studied. 

Propionic acid, 3,3 -thiodi, didodecyl ester. See Dilauryl thiodipropionate Propionic aldehyde. See Propionaldehyde Propionic ether. See Ethyl propionate 2-Propoxyethanol. See Ethylene glycol propyl ether 2-(2-Propoxyethoxy) ethanol. See Diethylene glycol propyl ether Propoxylated (2) allylmethacrylate. See PPG-2 allylmethacrylate Propoxylated glycerol triacrylate. See Glyceryl propoxy triacrylate Propoxylated (2) 1,6-hexanediol diacrylate. See PPG-2 1,6-hexanediol diacrylate... 

Synonyms Bis (dodecyloxycarbonylethyl) sulfide Didodecyl 3,3 -thiodipropionate Dilauryl 3,3 -thiodipropionate DLT DLTDP DLTP LTDP Propionic acid, 3,3 -thiodi, didodecyl ester Thiobis (dodecyl propionate) 3,3 -Thiobispropanoic acid, didodecyl ester Thiodipropionic acid dilauryl ester Classification Diester Definition Diester of lauryl alcohol and 3,3 -thiodipropionic acid Empirical C30H58O4S Formula (Ci2H2500CCH2CH2)2S Properties Wh. flakes, sweetish odor sol. in benzene, toluene, acetone, ether, chloroform si. sol. in alcohols, ethyl acetate insol. in water m.w. 514.94 dens. 0.975 m.p. 40 C b.p. 240 C (1 mm) acid no. < 1 flash pt. HOC Toxicology LD50 (oral, rat) > 10.3 g/kg no known toxicity eye irritant TSCA listed Precaution Combustible Hazardous Decomp. Prods. Heated to decomp., emits toxic fumes thermal decomp, prods. SOx... 

Note DES-diethyl sebacate, DBS-dibutyl sebacate, DOS-dioctyl sebacate, DMP-dimethyl phthalate, DOP-dio-ctyl phthalate, DHP-dihexyl phthalate, DBP-dibutyl phthalate, DNP-dinonyl phthalate, DDP-didodecyl phtha-late, DEPh-diethyl phosphate, DBPh-dibutyl phosphate, DBA-dibutyl adipate, DOA-dioctyl adipate, TCPh-tricresyl phosphate, TBPh-tributyl phosphate, BBP-hutyl henzyl phthalate, BBS-butyl benzyl sebacate, BBA-butyl benzyl adipate, DNBAA-dinonyl ester of benzylsuccinic acid, TGM-3-trioxyethylene-a,C0-dimethacrylate, LZ-7-ester of diethyleneglycol and synthetic fatty acids of the C -Cg fraction, DBCF-dibutylcarbitol formal, DBE-dibenzyl ether. 

In the area of cyclodextrin ethers the -compound has been converted into a set of five tris-Tbdms ethers, all substituted at their various 6-positions, which were separated by hplc and characterized by n.m.r. spectroscopy. Related work applied to y-cyclodextrin gave the various 6,6 -disubstituted ethers. 5-Bromo-l-pentene was used to produce the 2-0-mono-4-pentenyl ether of P-cyclodextrin which was then permethylated and the product was chemically bonded to silica gel to form an efficient hplc stationary phrase for the separation of enantiomers. Peroctyl a-cyclodextrin has been studied as a chiral receptor for the ephedrinium ion. Various octyl ethers of a-, P- and y-cyclodextrin ranging in their substitution from the diethers to completely alkylated products were characterized by electrospray mass spectrometry and n.m.r. methods applied to methylated derivatives. The 2,6-didodecyl derivative of p-cyclodextrin has been used as a potentiometric sensor. In the field of aromatic ethers, naphthyl carboxylate substituents have been bonded at the 6-positions and the products were able to transfer excitation energy to complexed merocyanine held in the cavities of those molecules. These phototransfer processes were extremely efficient.P-Substituted cyclodextrin derivatives with p-allyloxybenzoyl or various benzyl substituents at 0-2 or 0-3 were incorporated by hydrosilylation to give hydromethylpolysiloxane polymers used as chiral phases for chromatographic resolution of enantiomers. Cyclodextrins with complex benzyl-like eth are illustrated in 22 and 23. The latter were prepared as artificial redox enzymes. 

FIGURE 2.3 Freeze-fracture transmission electron micrographs of a biocontinuous microemulsion consisting of (A) 37.2% n-octane, 55.8% water, and smfactant pentathylene glycol dodecyl ether (From Vinson, P.K., Sheehan, J.G., Miller, W.G., Scriven, L.E., and Davis, H.T., J. Phys. Chem., 95, 2546, 1991. With permission.) (B) 43.05% n-dodecane, 43.05% water and 13.9% didodecyl-methylammonium bromide. (From Jahn, W. and Strey, R., J. Phys. Chem., 92, 2294, 1988. With permission.) In both cases 1 cm = 2000 A. 

Fig. 14 Cd-+ mobilization from degraded loess soil by various classes of surfactant o—o didodecyl dimethyl ammonium bromide X—X sodium dodecyl sulphate alkylphenyl polyethylene glycol ether (Triton-X-100) with 9.5 EO...

---