Abstract: The present disclosure generally relates to a blockchain monitoring system. For example, aspects of the present disclosure include systems and techniques for monitoring one or more transactions on a block chain using configured rules. Some aspects include a monitoring system having at least one memory and at least one processor coupled to the at least one memory and configured to: detect a block on a blockchain; retrieve, from a rules database, a rule associated with one or more transactions on the block; determine whether the rule applies to one or more transactions on the block; and perform one or more actions associated with the rule using an authentication code associated with a user, the authentication code being different than a private key of the user for accessing the blockchain.

Abstract: A process for the preparation of ethyltrifluoroacetoacetate is provided. In this first step, ethyltrifluoroacetate is condensed with ethyl acetate in the presence of sodium ethoxide in cyclohexane. In a second step, the condensation product is neutralized with a protonic acid, such as formic acid, to release an enol. In the third step, the ethyltrifluoroacetoacetate obtained is separated by distillation. The ethyltrifluoroacetoacetate is used as an intermediate in syntheses in the pharmaceutical or plant protection industry.

Abstract: A process for the preparation of ethyl trifluoroacetate, in which:in a first stage, trifluoroacetic acid is brought into contact with a slight excess of ethanol in the presence of concentrated sulfuric acid and a solvent, the solvent having a boiling point higher than that of trifluoroacetic acid and specific gravity relative to water less than 1 and which solvent does not form an azeotrope with ethyl trifluoroacetate, and then carrying out a phase separation and removing the sulfuric layer, followed, if required, by an additional stage in which concentrated sulfuric acid is added to complete the esterification;in a second stage, an additional quantity of sulfuric acid and trifluoroacetic acid is introduced and a phase separation is then carried out to remove the sulfuric layer; andin a third stage, the mixture obtained in the second stage is distilled to recover ethyl trifluoroacetate.

Abstract: A process for preparing alkali metal salts of trifluoroacetic acid in the anhydrous and crystalline state. In a first stage, trifluoroacetic acid is neutralized with an alkaline agent in a medium consisting essentially of an alcohol containing 3 to 4 carbon atoms. In a second stage, the water formed by the neutralization reaction is removed by azeotropic distillation. In a third state, the remainder not removed by distillation in the second stage is treated by adding a hydrocarbon which does not solubilize an alkali metal trifluoroacetate and which forms an azeotrope with the alcohol to separate crystals of anhydrous alkali metal trifluoroacetate.

Abstract: A process for the preparation of methyltrifluoroacetate. Trifluoroacetic acid is contacted with an excess of methanol and distilled to form a methyltrifluoroacetate/methanol azeotrope. The azeotrope is contacted with trifluoroacetic acid in the presence of a catalytic quantity of a strong acid followed by distillation to obtain methyltrifluoroacetate. The methyltrifluoroacetate can be used as a synthesis intermediate in the pharmaceutical industry.

Abstract: A process for preparing trifluoroacetic or trichloroacetic acid esters, wherein trifluoroacetic or trichloroacetic acid is brought together with a non-perfluorinated alcohol in liquid hydrofluoric acid and wherein the ester obtained is separated by decantation. The trifluoroacetic or trichloroacetic acid esters are used as synthesis intermediates in the pharmaceutical or the plant-protection industry.

Abstract: The present invention relates to a process for the preparation of trifluoroacetic anhydride which comprises bringing together trifluoroacetic acid with the anhydride of an .alpha.-halogenated acid.