15599-91-4Relevant articles and documents
Preparation of the First Examples of Ansa-Spiro Substituted Fluorophosphazenes and Their Structural Studies: Analysis of C-H···F-P Weak Interactions in Substituted Fluorophosphazenes
Muralidharan,Elias, Anil J.
, p. 7535 - 7543 (2003)
The reactions of fluorophosphazenes, endo ansa FcCH2P(S)(CH 2O)2[P(F)N]2(F2PN) (1) (Fc = ferrocenyl) and spiro [RCH2P(S)(CH2O) 2PN](F2PN)2 (R = Fc (2), C6H 5 (3)], with dilithiated diols have been explored. The study resulted in the formation of the first examples of ansa-spiro substituted fluorinated cyclophosphazenes as well as a bisansa substituted fluorophosphazene. The bisansa compound {1,3-[FcCH2P(S)(CH 2O)2]}{1,5-[CH2(CH2O) 2]}N3P3F2 (4) was found to be nongeminaly substituted with both the ansa rings in cis configuration, which is in stark contrast to the observations on cyclic chlorophosphazenes where geminal bisansa formation has been observed. The ansa-spiro compounds (5-7) underwent the ansa to spiro transformation leading to dispiro compounds in the presence of catalytic amounts of CsF at room temperature. Two of the ansa-spiro compounds, endo-{3,5-[FcCH2P(S)-(CH2O) 2]}{1,1-[CH2(CH2O)2]}N 3P3F2 (5) and endo-{3,5-[FcCH 2P(S)(CH2O)2]}{1,1-[FcCH 2P(S)(CH2O)2]}N3P3F 2 (6), were structurally characterized, and the crystal structures indicate boat-chair conformation as well as crown conformation for the eight-membered ansa rings. Weak C-H···F-P interactions observed in the crystal structures of the ansa-spiro substituted fluorophosphazene derivatives have been analyzed and compared with C-H···F-P interactions of other fluorinated phosphazenes and thionyl phosphazenes.
New results in the ammonolysis of hexafluoro-cyclo-triphosphazene: Crystal structure of P3N3F5-NH-P3 N3F4NH2
Richterová,Alberti,P?íhoda,Kubá?ek,Taraba,?ák
, p. 3078 - 3086 (2009)
The reaction of hexafluoro-cyclo-triphosphazene P3N3F6 with ammonia in acetonitrile has been studied. New compounds, (2-imino-2,4,4,6,6-pentafluoro-2λ5,4λ 5,6λ5-cyclo-triphosphaza-1,3,5-tri
Synthesis method of hexafluorocyclotriphosphazene
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Paragraph 0032-0050, (2021/01/12)
The invention discloses a synthesis method of hexafluorocyclotriphosphazene, which comprises the following steps: dissolving hexachlorocyclotriphosphazene in an organic solvent, adding a fluorinatingagent and a catalyst, carrying out fluorination reaction, and rectifying to obtain the target product hexafluorocyclotriphosphazene. The synthesis method of hexafluorocyclotriphosphazene has the advantages of mild reaction temperature, simple and easy-to-operate process, high yield, short time consumption, high purity, greenness, economy and convenience in industrial production.
Preparation method of pentafluoro ethoxy cyclotriphosphazene
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Paragraph 0049; 0059-0081, (2019/08/15)
The invention relates to the field of organic chemistry, in particular to a preparation method of pentafluoro ethoxy cyclotriphosphazene. The provided preparation method of pentafluoro ethoxy cyclotriphosphazene comprises the steps of 1, a fluorination reaction, wherein hexachloro cyclotriphosphazene reacts with hydrogen fluoride in the presence of a catalyst to prepare hexafluoro cyclotriphosphazene; 2, an etherification reaction, wherein the hexafluoro cyclotriphosphazene reacts with sodium alkoxide to prepare the pentafluoro ethoxy cyclotriphosphazene. The preparation method of the pentafluoro ethoxy cyclotriphosphazene has the advantages of being simple in reaction steps, reasonable in cost and suitable for large-scale industrialization.
Fluoridation catalyst of phosphonitrile and phosphonitrile derivative and synthetic method of fluoride
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Paragraph 0035-0036; 0039-0040; 0043-0044; 0047-0048; 0051, (2018/03/24)
The invention discloses a catalyst for fluoridation of phosphonitrile and a phosphonitrile derivative and a synthetic method of fluoride. The method comprises the following steps: dissolving chlorophosphonitrile or its derivative in an organic solvent, adding a fluorating agent and a catalyst and reacting for 1-48 h to obtain fluorophosphonitrile and a derivative thereof. The catalyst accounts for1-40% of total mass of the raw materials. The catalyst is an ionic liquid, has high melting/boiling point, is stable and green and environmentally-friendly, and has high catalytic efficiency. In addition, yield is greatly raised, and average yield reaches 98% and above.