Potassium methylate

Potassium Methylate. Potassium methoxide [865-33-8] KOCH, mol wt 70.13, is a fine, free-flowing, yellowish-white, caustic, hygroscopic powder purity 96.5—99% powder density after loose shaking, 0.75 g/mL apparent density (packing weight), 1.00 g/mL medium grain size, 0.05 —0.8 mm easily soluble in alcohols (33% in methanol at 20°C), insoluble in hydrocarbons. 

Potassium Leiuene sulphonate, 177 Potassium ethyl sulphate, 50 Potassium methyl sulphate, 50 Preparations, general remarks, 47 Pressure tube, glass, 24, 78 furnace, 24 metal, 227... 

Thiophenealdehydes have been condensed with aliphatic aldehydes, methyl ketones,cyclic ketones, " benzyl cyanides,and aliphatic nitro compounds to the corresponding vinylthiophenes. By the use of potassium methylate, 2-thiophenealdehyde has been condensed with the reactive methyl groups of iV-heterocyclic compounds. Thiophenealdehydes have... 

The ormethyl-salicylic acid melting at 99°, whUst the par -compound yields anisic acid melting at 184°. 

Polymer films can be made antistatic with a-sulfonated fatty acid salts and esters [94]. For example, an antistatic additive for polypropylene manufacture can be prepared from potassium methyl a-sulfopalmitate, styrene oligomer, and 2-propanol [95]. The treatment of synthetic fibers and fabrics with a-sulfo-... 

Cj4Hi4N303S 0.5 Cyclomaltohexaose-potassium Methyl Orange, hydrate CDXKOM 43 355... 

Potassium 4-chloro-3,5-dinitrobenzene-sulfonate, 31, 46 Potassium cyanate, 31, 9 Potassium cyanide, 30, 84 32, 31, 63 Potassium ethyl xanthate, 30, 56 Potassium hydroxide, 30, 103 Potassium iodide, 30, 34 31, 31, 66 Potassium methyl sulfate, 31, 73... 

Potassium 4-chloro-3,5-dinitrobenzene-sulfonate, 31, 46 Potassium cyanate, 31, 9 Potassium cyanide, 30,84 32,31,63 37,47 Potassium ethyl malonate, 37, 34 Potassium ethyl xanthate, 30, 56 Potassium fluoride, 36, 40 Potassium iodide, 30, 34 31, 31, 66 Potassium metal, 37, 29, 30 Potassium methyl sulfate, 31, 73 Potassium nitrate, 31, 46 Potassium 1-nitropropylnitronate, 37, 24 Potassium oxalate, 34, 83 Potassium permanganate, 30, 87 31, 59 Potassium sulfide, 32, 103 Potassium thiobenzoate, 32, 101 Potassium thiocyanate, 32, 39, 40 Prins reaction, 33, 72 Propane, 1, 3-dibromo-2, 2-Ws-(bromo-methyl)-, 31, 82... 

Potassium methyl a-[(methoxyethylidene)amino]-p-hydroxyacrylate Propanoic acid, 2-[(1-methoxyethylidene)amino]-3-oxo-, methyl ester, ion(l-), potassium (11) (105205-36-5) Potassium tert-butoxide tert-Butyl alcohol, potassium salt (8) 2-Propanol, 2-methyl-, potassium salt (9) (865-47-4)... 

C. 4-Methoxycarbonyl-2-methyl-1,3-oxazole (3). A flame-dried, 50-mL, twonecked, round-bottomed flask is equipped with a stir bar, reflux condenser, rubber septum, and an argon inlet. The flask is charged with glacial acetic acid (15 mL) which is heated to reflux. To this is added crude potassium methyl a-[(methoxyethylidene)-amino]-P-... 

Potassium borohydride also may be prepared by reacting potassium tetramethoxyborohydride with diborane at low temperatures or by passing diborane through a solution of potassium methylate in methanol. 

Potassium methyl dicyanoacetate 359 reacted smoothly with (3,3-dichloro-2-propenylidene)dimethylammonium chloride 360 in chloroform at room temperature to yield a 1 1 mixture of the ( )- and (Z)-isomers of the zwitterionic 1,3-oxazine iminium salts 113Aand 113B (Equation 38) <1999H(51)2893>. 

Bla methoxy(thiocaibonyl)] disulfide, (CH3OCS)2 (I). Mol. wt. 214.34, m.p. 23.5°. The disulfide is prepared by reaction of potassium methyl xanthate, CH3OCSS, with chloramine-T at 25°.1... 

TNB+Potassium Methylate, C6H3(N02)3 + CH3.OK+ 1/2HzO red crysts, expl violently when heated on a Pt foil (Ref 2)... 

Dimethyl selenide, (CH3)2Se.—An intimate mixture of selenium and amorphous phosphorus (5 2) is heated, and the black mass powdered and heated in a retort with concentrated sodium hydroxide and potassium methyl sulphate. The mixture foams and a yellow liquid distils over. This is separated from the water and fractionated to remove dimethyl diselenide, which is present in small quantity. 

The compound of TNT with potassium methylate is a dark red powder which inflames or explodes when heated to 130-150°, and has been reported to explode spontaneously on standing at ordinary temperature. An aqueous solution of this compound, on the addition of copper tetrammine nitrate, gives a brick-red precipitate which, when dry, detonates violently at 120°. Pure TNT... 

Ault, Haworth and Hirst47 first synthesized the methyl a-D-glycoside methyl ester of 2,3,4-tri-O-methyl-D-mannuronic acid by successive treatment of potassium (methyl a-D-mannopyranosid)uronate with dimethyl sulfate and sodium hydroxide, and then methyl iodide and silver oxide. Although no crystalline derivatives were isolated, there is little doubt about its structure, since the authors48 subsequently proved the presence of a pyranose ring in the starting material for the synthesis, methyl 2,3-O-isopropylidene-a-D-mannoside. The uronic acid has also been synthesized by Smith, Stacey and Wilson,28 who oxidized methyl... 

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