This document is part of Volume 47 'Optical Contants - Refractive Indices of Pure Liquids and Binary Liquid Mixtures (Supplement to III/38)' of Landolt-Brnstein Group III 'Condensed Matter'. Chemical substances in this chapter: Element System: C-H-O Hill Formula: C 6 H 10 O Molecular Wei...
The title compound (molecular formula C25H30Fe) forms prismatic crystals from hexane which belong to the monoclinic space group P21/n with lattice constants a 9.486(2), b 12.134(2), c 16.024(2)Å, β 93.12(1)°, and Z = 4. The structure was solved by the heavy atom method and ref...
NEW MATERIAL:A 2,5-dimethyl-3,4-dioxohexanediacid dialkyl ester shown by the formula (R is alkyl). EXAMPLE:2,5-Dimethyl-3,4-dioxohexanediacid diethyl ester. USE:Having an aroma like strong fruits, useful as an intermediate for synthesizing 2, 5-dimethyl-4-hydroxy-2H-furan-3-one capable...
Products of reactions which have been precipitated while cooling are filtered, serially washed with ethanol, hexane and dried out on iair. The structure of obtained compounds is proved by methods of element analysis, IR- and PMR-spectrums. Applied compounds have a general formula (A): (A) ...
And ready stock on cyclohexanone, Dimethyl Formamide, Propylene Glycol, Ethylene Glycol, Dimethyl Carbonate, Thiourea, Polyol, TDI, IPA, Ethanol etc.2 Q: How can you guarantee your quality?A: Our factory owns mature production line under EPR quality system. We can guarantee...
Carboxylic acid derivatives useful for inhibiting the degeneration of cartilage of the general formula 4-(2-(4,4-dimethyl-6-X)-2-methylvinyl)benzoic acid where X is tetrahydroquinolinyl, chromanyl or thiochromanyl are disclosed in European Patent Application 0133795 published Jan. 9, 1985. See ...
4-methoxytoluene, ethoxybenzene, 1,3-dioxane, 1,4-dioxane, tetrahydrofuran, and the like; and miscellaneous solvents, such as N,N-dimethylformamide, N,N-dimethylacetamide, dimethyl sulfoxide, N-methyl-2-pyrrolidone, and the like. The preferred solvents are ethers, with ethyl ether and tetrahydro...
Practical Synthesis of Four Stereoisomers of 6-(t-Butyldiphenylsiloxy)-3,5-dimethyl-1-(triphenylmethoxy)hexane-2,4-diol via Dithiane Coupling with Oxirane The anion derived from 2-substituted 1,3-dithiane derivative, (S)-2-[2-(t-butyldiphenylsiloxy)-1-methylethyl]-1,3-dithiane, with n-...
DMSO: dimethylsolfoxide Chemical shifts of1H-NMR (proton nuclear magnetic resonance) spectra are recorded in δ units (ppm) relative to tetramethylsilane and coupling constants are recorded in hertz (Hz). The abbreviations of the splitting pattern are as follows: s: singlet; d: doublet; t: ...
condensed rings such as an imidazolyl, pyrimidinyl, thiazolyl, naphthyl quinolinyl, indolyl or quinolizinyl group; as aralkyl or heteroaralkyl groups, respectively, R5 and R6 may stand for an aryl-(C1-6)alkyl group such as benzyl, 1-phenylethyl, 2-phenylethyl, 4-phenylbutyl, furfuryl, 2...