Sodium pyridine

Hydroxylamine Barium oxide and peroxide, carbonyls, chlorine, copper(II) sulfate, dichromates, lead dioxide, phosphorus trichloride and pentachloride, permanganates, pyridine, sodium, zinc... 

O -(p-Aminobenzenesu I fonam idol pyridine Sodium nitrite Hydrogen chloride Salicylic acid... 

Nitrobenzoyl peroxide,2 as well as w-nitrobenzoyl peroxide2 and anisoyl peroxide,3 have been prepared in about 50 per cent yields from the acid chlorides and an acetone solution of hydrogen peroxide, in the presence of a basic substance such as pyridine, sodium acetate, or sodium hydroxide. w-Nitrobenzoyl peroxide has also been prepared by nitration of benzoyl peroxide with cold... 

Pyrylium salts, especially the 2,4,6-triaryl substituted, react with a wide variety of nucleophiles some of which lead to the formation of rings other than benzene or pyridine. Sodium sulphide, for instance, attacks the pyrylium ring at C-2 to produce the blue-coloured dienone (78) which then cyclizes on treatment with add to the thiopyrylium salt (79) (56HCA207). 

D EH Y DROC HLORIN ATI ON Potassium superoxide. Pyridine. Sodium bicarbonate. 

An unusual type of reaction is anodic reduction which can be performed at certain metal anodes. Thus, when magnesium is used as an anode in the electrolysis of benzophenone in pyridine/sodium iodide solution, the anode is consumed and benzopinacol can be isolated from the anolyte 15S). Here reduction by univalent magnesium ion is postulated ... 

Acyl azides. These azides are prepared in almost quantitative yield by reaction of a carboxylic acid or the potassium salt with phcii/l dichlorophosphate, pyridine, sodium azide, and a catalytic amount of tetrabutylammonium bromide in CH,C1, at 25°. 

Incompatible with ethanol, ethanol + butadiene, ethanol + phosphorus, ethanol + methanol + HgO, formamide + pyridine + sulfur trioxide, formamide, halogens or interhalogens (e.g., chlorine), mercuric oxide, metals (e.g., aluminum, lithium, magnesium), metal carbides (e.g., lithium carbide, zirconium carbide), oxygen, pyridine, sodium hydride, sulfides. 

A powerful oxidizer. A very dangerous fire hazard. A severe explosion hazard when shocked or exposed to heat. May explode during distillation. Potentially explosive reaction with ferrocene, pyridine, sodium ethoxide. Mixtures with amines (e.g., aniline) ignite spontaneously and may explode. Mixtures with cotton or toluene may explode when ignited. Forms sensitive and powerful explosive mixtures with... 

In interfacial polyamidation the reaction takes place close to the interface between a solution or suspension (usually aqueous) of the diamine and a solution of the diacyl or disulphonyl chloride in an immiscible organic solvent. The aqueous layer often contains an acid acceptor such as triethylamine, pyridine, sodium hydroxide or sodium carbonate, to neutralize the hydrochloric acid produced in the reaction. Often an emulsifier is used to increase interfacial area. The reaction is believed to occur just within the organic solvent layer. The rate of reaction is so fast that the process becomes diffusion-controlled. 

Mercur dithienyl may also be obtained in 90 per cent, yield by the reduction of 2-chlorornercuri thiophene in pyridine-sodium hydroxide solution by means of stannous chloride. ... 

Acetylation. A comparative student experiment with salicylic acid and acetic anhydride demonstrates that common acetylation catalysts fall into the following order of relative effectiveness coned. H2SO4 > boron trifluoride etherate > pyridine > sodium acetate. Although it is a relatively weak catalyst, sodium acetate is completely nondestructive and can be employed in much larger than truly catalytic amounts. An example is the acetylation of furylcarbinol. A mixture of the reactants and solvent benzene was heated on the steam bath with stirring to prevent caking... 

Acetylation Acetic anhydride. N-Acetoxyphthalimide. 2- and 3-Acetoxypyridine. Acetyl chloride. N-Acetylimidazole. Boron trifluoride. Catalysts (see Acetic anhydride). Ketene. Magnesium. Methyl oxocarbonium hexafluoroantimonate. Perchloric acid. Phenyl acetate. Pyridine. Sodium acetate. Tetraelhylammonium acetate. p-Toluenesulfonic acid. Tri-n-hexylethyl ammonium hydroxide. 2,4,6-Triisopropylbenzenesulfonyl chloride. Trityl-sodium. Zinc chloride. 

Acid acceptors Lead acetate trihydrate. 2,6-Lutidine. Magnesium oxide. Mercuric oxide. Pyridine. Sodium acetate. 

Acylation (see also Acetylation, Cathylation) Acyl fluorides. Benzoylchloride (see Hippuric acid, preparation). N-Carbonylsulfamic acid chloride. Chloroacetic anhydride. Chloroacetyl chloride. Magnesium. Mesyl chloride. Methanesulfonic anhydride. 1-Morpholinocyclo-hexene. Pyridine. Sodium diisopropylamide. Sodium hydride. Trifluoroacetic anhydride. 

Meprobamate was refluxed in pyridine sodium methoxide solution. The excess sodium methoxide was... 

The polymer-supported 4-(A -methylamino)pyridine (Figure 3.4), prepared by reaction of 4-chloromethylstyrene and 4-(methylamino)pyridine sodium salt and successive copolymerization with styrene and divinyl benzene,was utilized as reusable catalyst for promoting the Baylis-Hillman reaction usually this kind of reaction uses stoichiometric or overstoichiometric amounts of an organic amine as a base catalyst. 

BETRAPRONE (57-57-8) Combustible liquid (flash point 165°F/74°C). Able to polymerize in elevated temperatures and decomposes at room temperature, forming unstable peroxides stable below 41°F/5°C. Violent reaction with strong oxidizers, strong acids, alkalis, aniline, chlorosulfonic acid, 1,2-ethanediamine, ethanolamine, ethyleneimine, pyridine, sodium hydroxide. Incompatible with 2-aminoethyl alcohol, ammonium hydroxide. Hydrolyzes in fresh water, forming hydracrylic acid in salt water reacts with the chloride, forming 3-chloropropionic acid. 

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