1623-19-4Relevant articles and documents
METHOD FOR PRODUCING ORGANOPHOSPHORUS COMPOUND
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Paragraph 0048; 0079, (2020/05/02)
PROBLEM TO BE SOLVED: To provide a method for producing an organophosphorus compound which has excellent energy efficiency without containing a halogenated alkyl or a by-product derived from a halogenated alkyl. SOLUTION: There is provided a method for producing an organophosphorus compound by reacting a trivalent organophosphorus compound represented by the following general formula (1) in the presence of a super strong acid and/or at least one acid catalyst containing a solid superstrong acid catalyst to generate a pentavalent organophosphorus compound represented by the following general formula. (where Z1 represents OR2 or R2; Z2 represents OR3 or R3; R1, R2 and R3 represent an alkyl group, an alkenyl group or the like; when R2 and R3 are an alkyl group or the like, R2 and R3 may be bonded to each other to form a cyclic structure; and R1 may be a hydrogen atom.) SELECTED DRAWING: None COPYRIGHT: (C)2020,JPOandINPIT
Preparation method of triallyl phosphate
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Paragraph 0038-0052, (2020/11/09)
The invention relates to a preparation method of triallyl phosphate. The method comprises the following steps: (1) providing phosphate and 3-chloropropene; and (2) reacting the phosphate with the 3-chloropropene at a temperature of 30 DEG C to 80 DEG C to form the triallyl phosphate. According to the method for preparing the triallyl phosphate, the varieties of reaction raw materials are few, dangerous chemicals are not involved, the reaction process is safe, and operation is easy. The hydrogen chloride gas generated by the reaction in the method for preparing the triallyl phosphate is absorbed into hydrochloric acid by water, and basically no three wastes are generated. Under the auxiliary action of the catalyst, the reaction provided by the invention has the advantages of higher reactionconversion rate, fewer impurities in the product and easiness in product purification, and is more suitable for industrial production.
Method for preparing unsaturated propyl phosphite ester and unsaturated propyl phosphate
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Paragraph 0069-0072, (2019/08/15)
The invention relates to a method for preparing unsaturated propyl phosphite ester or unsaturated propyl phosphate. The unsaturated propyl phosphite ester is selected from triallyl phosphite and tripropargyl phosphite, and the unsaturated propyl phosphate is selected from triallyl phosphate and tripropargyl phosphate. The method comprises the steps: enabling phosphorus trichloride or phosphorus oxychloride to react with allyl ester to form triallyl phosphite or triallyl phosphate; or enabling phosphorus trichloride or phosphorus oxychloride to react with propargyl ester to form propargyl phosphite or propargyl phosphate. The method for preparing unsaturated propyl phosphite ester or unsaturated propyl phosphate does not need any catalyst, and a by-product acyl chloride compound has a low boiling point and is easy to separate so that the unsaturated propyl phosphite ester or unsaturated propyl phosphate with high yield and high purity can be obtained.
Method for synthesizing triallyl phosphate
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Paragraph 0021-0044, (2017/08/31)
The invention provides a method for synthesizing triallyl phosphate, and belongs to the technical field of compound synthesis. The method comprises the following steps: adding allyl alcohol serving as a raw material and an acid-binding agent into a solvent under protection of nitrogen; then, adding phosphorus oxychloride to react; pumping and filtering the reacting liquid; washing, drying, decoloring and concentrating to obtain triallyl phosphate; controlling the reacting temperature to be less than negative 30 DEG C when the phosphorus oxychloride is dropwise added for 3.4-7.5 hours; and naturally heating to -2-zero DEG C, and stopping reaction. The synthesizing method is simple and easy to operate, and the prepared triallyl phosphate has high yield and high purity.
Chemistry of α-Aminonitriles. Formation of 2-Oxoethyl Phosphates ('Glycolaldehyde Phosphates') from rac-Oxiranecarbonitrile and on (Formal) Constitutional Relationships between 2-Oxoethyl Phosphates and Oligo(hexo- and pentopyranosyl)nucleotide Backbones
Pitsch, Stefan,Pombo-Villar, Esteban,Eschenmoser, Albert
, p. 2251 - 2285 (2007/10/02)
Oxiranecarbonitrile in basic aqueous solution at room temperature reacts regioselectively with inorganic phosphate to give the cyanohydrin of 2-oxoethyl phosphate ('glycolaldehyde phosphate'), a source of (the hydrate of) the free aldehyde, preferably in the presence of formaldehyde.In aqueous phosphate solution buffered to nearly neutral pH, oxiranecarbonitrile produces the phosphodiester of glycolaldehyde as its bis-cyanohydrin in good yield.In contrast to mono- and dialkylation, trialkylation of phosphate with oxiranecarbonitrile is difficult, and the triester derivative is highly sensitive to hydrolysis.Glycolaldehyde phosphate per se is of prebiotic interest, since it had been shown to aldomerize in basic aqueous solution regioselectively to rac-hexose 2,4,6-triphosphates and- in the presence of formaldehyde - mainly to rac-pentose 2,4-diphosphates with, under appropriate conditions, rac-ribose 2,4-diphosphate as the major reaction product.However, the question as to whether oxiranecarbonitrile itself has the potential of having been a prebiological natural constituent remains unanswered.Backbone structures of hexopyranosyl-oligonucleotides with phosphodiester linkages specifically between the positions 6'->4',6'->2', or 4'->2' of the sugar residues can formally be derived via the (hypothetical) aldomerization pathway, a combinatorial intermolecular aldomerization of glycolaldehyde phosphate and bis(glycolaldehyde)phosphodiester in a 1:1 ratio.The constitutional relationships revealed by this synthetic analysis has played a decisive role as a selection criterion in the pursuit of our experimental studies toward a chemical etiology of the natural nucleic acids' structure.The Discussion in this paper delineates how the analysis contributed to the conception of the structure of p-RNA.The English Footnotes to Schemes 1-11 provi de an extension of this summary.
Direct Transformation of Trialkyl Phosphates into Organolithium Compounds by a DTBB-Catalysed Lithiation
Guijarro, David,Mancheno, Balbino,Yus, Miguel
, p. 8551 - 8558 (2007/10/02)
The reaction of different alkylic or phenylic phosphates 1 with an excess of lithium powder and a catalytic amount of DTBB (5 mol percent) in the presence of an electrophile -Barbier-type reaction conditions- in THF at -30 deg C leads to the formation of the expected products 2, resulting from the reaction of the in situ generated organolithium compound with the corresponding electrophile.
Lower alkyl di propargyl phosphates
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, (2008/06/13)
Synergistic arthropodicidal compositions containing (1) a phosphorus-containing compound of the formula STR1 in which R1, R2 and R3 each independently is an optionally substituted alkyl, alkenyl or aryl radical, at least one of R1, R2 and R3 being an optionally substituted alkenyl radical unsaturated in the 2-position, X is oxygen or sulphur, and Y and Z each independently is oxygen, sulphur or a direct bond; and if both Y and Z are oxygen or sulphur or a direct bond, then any of R1, R2 and R3 can denote propargyl in addition to the radicals indicated above, and (2) at least one (A) carbamate, (B) carboxylic acid ester, (C) phosphoric acid ester other than (1), (D) halogenocycloalkane or (E) halogenoalkane.
Preparation of aliphatic phosphates
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, (2008/06/13)
A process for the preparation of trialkyl and trialkenyl phosphates. The process involves oxidation of the corresponding phosphite with oxygen or an oxygen-containing gas. The oxidation is catalyzed by a metal catalyst such as a transition metal carboxylate, for example, and is carried out at relatively low temperatures.
