1546-95-8

Usage

Uses

Used in Polymer Production:
7H-Dodecafluoroheptanoic acid is utilized as a surfactant in the production of polymers, where its stability and properties contribute to the creation of high-quality polymer materials.
Used in Electronics Industry:
In the electronics sector, 7H-Dodecafluoroheptanoic acid serves as a surfactant, playing a crucial role in the manufacturing process of electronic components due to its ability to withstand harsh conditions and contribute to the performance and reliability of the final products.
Used in Surface Coatings:
7H-Dodecafluoroheptanoic acid is employed as a surfactant in surface coatings, enhancing the durability and performance of the coatings by providing resistance to environmental factors such as heat and chemicals.
Environmental and Health Research:
There is ongoing research into the potential health and environmental impacts of 7H-Dodecafluoroheptanoic acid, given its persistence in the environment. This research aims to understand and mitigate any adverse effects it may have on ecosystems and human health.
Development of Safer Alternatives:
Efforts are being made to develop safer alternatives to 7H-Dodecafluoroheptanoic acid for use in various industries, in response to environmental and health concerns associated with its use. These alternatives are intended to maintain the beneficial properties of the original compound while reducing its environmental footprint.

InChI:InChI=1/C7H2F12O2/c8-1(9)3(10,11)5(14,15)7(18,19)6(16,17)4(12,13)2(20)21/h1H,(H,20,21)

Upstream product

• 335-99-9 2,2,3,3,4,4,5,5,6,6,7,7-dodecafluoro-1-heptanol 
• 137348-79-9 dimethoxysilanediyl bis(7H-dodecafluoroheptanoate) 
• 66-71-7 1,10-Phenanthroline 

Downstream Products

• 41405-35-0 7,H-dodecafluoroheptanoyl chloride 
• 1550-24-9 7-Chlor-perfluorheptansaeure 
• 336-07-2 1H,6H-perfluorohexane 
• 812-87-3 1,7-Dihydrododecafluoroheptane-1,1-diol 
• 19493-30-2 1H,7H-tetradecafluoro-heptane 
• 6500-31-8 2,2,3,3,4,4,5,5,6,6,7,7-Dodecafluor-1-phenyl-heptan-1-on 
• 5927-65-1 Perfluoro-7-hydroheptaldehyd 
• 375-85-9 perfluoroheptanoic acid 
• 375-84-8 2,2,3,3,4,4,5,5,6,6,7,7,7-tridecafluoroheptanoyl fluoride 

Relevant academic research and scientific papers

Syntheses and Reactions of Metal Organics. XVI. Synthesis and Hydrolysis of Dimethoxysilanediyl Bis(polyfluoroalkanoate)

Four new silicon compounds, dimethoxysilanediyl bis(5H-octafluoropentanoate), (CH3O)2Si2, dimethoxysilanediyl bis(7H-dodecafluoroheptanoate), (CH3O)2Si2, dimethoxysilanediyl bis(9H-hexadecafluorononanoate, (CH3O)2Si2, and dimethoxysilanediyl bis(pentadecafluorooctanoate), (CH3O)2Si2, were prepared by the reaction of dichlorodimethoxysilane with sodium salts of fluoro-substituted carboxylic acid.The 1H NMR, 13C NMR, and 19F NMR and IR spectral data of these silicon compounds were obtained.In the course of a study of the s tability of the silicon compounds against hydrolysis by using 1H NMR spectral measurements, it was found that the ease of hydrolysis of the SiOCOR and the SiOCH3 moieties was exactly same.

Conformational energies of perfluoroalkanes. 5. Dipole moments of H(CF2)nH and H(CF2)nI

Dielectric and refractive index increments at 25°C are reported for some α,ω-dihydroperfluoroalkanes and α-hydro-ω-iodoperfluoroalkanes in benzene and CCl4. Similar measurements on perfluorocyclohexane and perfluoro-n-hexane are used to deduce effective atomic polarizations for fluorocarbons in solution. The dipole moments obtained lead to a somewhat smaller characteristic ratio for the perfluoroalkane chain than had earlier been estimated by Bates and Stockmayer.

Method for synthetizing dodecafluoroheptanoic acid through oxidization with potassium permanganate by phase transfer catalysis

The invention provides a method for synthetizing dodecafluoroheptanoic acid through oxidization with potassium permanganate by phase transfer catalysis. The method includes the following steps: 1) a step of an oxidation reaction, namely a step of adding the potassium permanganate, an organic weak acid solution and a quaternary ammonium salt catalyst into a reaction vessel, slowly dropping dodecafluoroheptanol into the reaction vessel, and continuously stirring to react for 0.5-1.5 h after the dropping is completed; and 2) a step of separation and purification, namely a step of carrying out vacuum filter on the reaction mixed liquor while hot by taking active carbon or diatomite as a filter aid, washing a filter cake by a sodium carbonate solution, combining a filtrate with a washing solution, adding an organic solvent to extract a aqueous solution after the acidification, and performing underpressure distillation, recrystallization and the like. According to the method provided by themethod, the dodecafluoroheptanoic acid is synthetized at 70 DEG C to 85 DEG C, the reaction conditions are mild, the post-treatment is simple, the time is about 2-4 h, the molar yield of the dodecafluoroheptanoic acid is 80%-90%, and the purity is no less than 97%. The dodecafluoroheptanoic acid can be used as a dispersing agent replacing perfluorocapylic acid in related industried.

Preparation method of perfluoroheptanoic acid

The invention relates to the technical field of fluorochemical preparation, particularly a preparation method of perfluoroheptanoic acid. The method comprises the following steps: oxidizing dodecafluoroheptanol to obtain dodecafluoroheptanoic acid, carrying out reaction on the dodecafluoroheptanoic acid and thionyl chloride to obtain dodecafluoroheptanoyl chloride, carrying out fluorination on the dodecafluoroheptanoyl chloride to obtain perfluoroheptanoyl chloride, and hydrolyzing to obtain the perfluoroheptanoic acid. The technical process of preparing perfluoroheptanoic acid from dodecafluoroheptanol has the advantages of low energy consumption, no pollution and high yield (up to 75% or above), is easy to operate, and has higher competitive edges than the existing perfluoroheptanoic acid production technique.

METHODS OF PREPARING FLUORINATED CARBOXYLIC ACIDS AND THEIR SALTS

A method for preparing fluorinated carboxylic acids and theirs salts is described comprising subjecting a fluorinated alcohol of the general formula (A): A-CH2-OH to at least one first and at least one second oxidizing agent to produce a highly fluorinated carboxylic acid or their salts of the general formula (B): A-COO M+, wherein M+ represents a cation and wherein A in formulas (A) and (B) is the same and A represents the residue: Rf-[0]p-CX"Y"-[0]m-CX'Y'-[0]n-CXY- wherein Rf represents a fluorinated alkyl residue which may or may not contain one or more catenary oxygen atoms, p, m and n are independently from each other either 1 or O, X, X', X", Y, Y' and Y" are independently from each other H, F, CF3, or C2F5 with the proviso that not all of X, X', X", Y, Y' and Y' ' are H; or A represents the residue: R-CFX- wherein X and R are independently selected from a hydrogen, a halogen, or an alkyl, alkenyl, cycloalkyl, or aryl residue, which may or may not contain one or more fluorine atoms and which may or may not contain one or more catenary oxygen atoms; wherein said at least one first oxidizing agent is a compound that can be converted, by action of the second oxidizing agent, into a reactive species capable of oxidizing the fluorinated alcohol.

Method for preparing α-substituted ω-hydroperfluoroalkanes

A method for the preparation of α-substituted ω-dihydroperluoroalkane derivatives of the general formula H(CF2 CF2)n R wherein R=H or COOH, and n=1-10 is characterized by oxidizing α, α, ω-trihydroperfluoroalcohols with an oxygen gas or an oxygen-containing gas in the presence of a homogeneous copper catalyst and an alkaline agent in an organic solvent with subsequent isolation of the desired product.

Practical preparation of some potentially anesthetic fluoroalkanes: regiocontrolled introduction of hydrogen atoms

Methods are described for the large-scale preparation of a number of fluoroalkanes, which have been tested for general anesthesia.