Methyl and ethyl esters can be distinguished in the IR [68]. The O–CH3 group has a band near 2960 cm−1, mw, (CH3 antisymmetric stretch) and a band near 1440 cm−1, m, (CH3 symmetric deformation). The antisymmetric CH3 deformation is near 1460 cm−1, mw. The O–CH2–CH3 ...
POLY(ETHYLENE GLYCOL) METHYL ETHER METHACRYLATE 1.2 Synonyms averagemnca.1.100; METHOXY POLYETHYLENGLYCOL METHACRYLATE; Poly(ethylene glycol) methyl ether methacrylate,Methoxy PEG methacrylate, Methoxy poly(ethylene glycol) monomethacrylate, Poly(ethylene glycol) monomethyl ether monomethacrylate; Poly(oxy-1...
15a) and C18-methyl esters with either one 3-membered cyclic ether functional group (oxirane esters, Fig. 15b) or one ketone functional group (oxo-esters, Fig. 15c) branched on the aliphatic main chain. These species were hypothesized to come from a combination of HO2 radicals with the ...
DIETHYLENE GLYCOL ETHYL METHYL ETHER (cas# 1002-67-1) is a useful research chemical. 8.1 Materials Uses Lacking a hydroxyl group, diethylene glycol ethyl methyl ether can be used as a solvent for a wide range of applications. 8.2 Chemical Synthesis 5 parts of H-type ZSM-5 (SiO2 / Al2O...
Crystallise it by dissolving in it AcOH and adding pet ether (b 40-50o) to give colourless plates. UV max (A 1mm ): 222nm (865) and 268nm (116) [Isler et al. Helv Chim Acta 40 1242 1957]. [Beilstein 16 IV 977.] Methyl (triphenylphosphoranylidene)acetate Preparation Products And...
However, upon washing the ether solution with 2N HCl, a black amorphous solid precipitated from the solution. There was no note of this black solid in the Trivedi procedure, so the work-up was continued without modification. The black solids ended up in the aqueous washes, or stuck to the...
(dimethylaminoethyl) ether in dipropylene glycol with equivalent weight = 233.70) were purchased from Sigma-Aldrich (Hamburg, Germany); Desmodur 44V20L (NCO% = 31.5, Equivalent weight = 133.33) was purchased from Bayer (Shah Alam, Malaysia); YD6205 polyol was purchased from Arch Chemicals (...
ether derivative of cellulose containing both methoxy and hydroxypropyl groups. The degree of substitution is 1.08 to 1.83 with the hydroxypropyl groups as the minor constituent. White to off-white fibrous powder or granules. Soluble in water and some organic solvents. Insoluble in ethanol, the ...
The mixture was poured into di- ethyl ether and filtered. No residual product was found in the filtrate. EXPERIMENTAL SECTION Materials 1-(2-Methylpropenoyloxy)phthalimide (1) was synthesized by the following procedure7 : to a solution of 49.0 g (0.300 mol) N-hy- droxyphthalimide in 500 ...
1,1-Dimethylethyl methyl ether; 2-Methoxy-2-methylpropane; 2-Methyl-2-methoxypropane; Driveron; Ether, tert-butyl methyl; Methyl 1,1-dimethylethyl ether; Methyl tert-Butyl Ether; Methyl tert-butyl ether, for residue analysis; Methyl tertiary butyl ether; Methyl-tert-bu; MTBE; Propane, 2-me...