677-69-0 Usage
Description
Heptafluoroisopropyl iodide, also known as Heptafluoro-2-iodopropane, is a chemical compound that consists of a heptafluoroisopropyl group attached to an iodine atom. It is a versatile reagent in organic synthesis and has unique properties due to its highly electronegative fluorine atoms.
Uses
Used in Chemical Synthesis:
Heptafluoroisopropyl iodide is used as a reagent in the preparation of perfluoropropyl magnesium bromide and perfluoropropyl magnesium iodide. These compounds are valuable intermediates in the synthesis of various perfluorinated organic compounds.
Used in Telomerization Reactions:
Heptafluoroisopropyl iodide is used as a chain-transfer agent in telomerization reactions involving 1,1-difluoroethylene and tetrafluoroethylene. This application allows for the controlled synthesis of perfluorinated polymers with specific molecular weights and structures.
Used in the Production of Perfluorinated Compounds:
Heptafluoroisopropyl iodide is used in combination with other perfluorinated iodides, such as CF3I, C2F5I, and n-C3F7I, to produce a variety of perfluorinated compounds. These compounds have diverse applications in various industries, including electronics, pharmaceuticals, and materials science.
Used in the Electronics Industry:
In the electronics industry, Heptafluoroisopropyl iodide is used in the production of perfluorinated materials with unique dielectric and non-stick properties. These materials are essential for the fabrication of high-performance electronic devices and components.
Used in the Pharmaceutical Industry:
Heptafluoroisopropyl iodide is used in the synthesis of perfluorinated pharmaceuticals, which have potential applications in drug delivery and imaging. The unique properties of perfluorinated compounds, such as their hydrophobicity and stability, make them valuable in the development of novel therapeutic agents.
Used in the Materials Science Industry:
In materials science, Heptafluoroisopropyl iodide is used to create perfluorinated materials with exceptional chemical and thermal stability. These materials are useful in various applications, such as high-performance lubricants, coatings, and sealants.
Flammability and Explosibility
Nonflammable
Purification Methods
Purify it by gas chromatography on a triacetin (glyceryl triacetate) column, followed by bulb-to-bulb distillation at low temperature. Store it over Cu powder to stabilise it. UV has max at 271nm ( 240) in pet ether (b 60-80o). [Haszeldine J Chem Soc 1767, 3761 1953, Beilstein 1 III 255, 1 IV 225.]
Check Digit Verification of cas no
The CAS Registry Mumber 677-69-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,7 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 677-69:
(5*6)+(4*7)+(3*7)+(2*6)+(1*9)=100
100 % 10 = 0
So 677-69-0 is a valid CAS Registry Number.
InChI:InChI=1/C3F7I/c4-1(11,2(5,6)7)3(8,9)10
677-69-0Relevant articles and documents
Miller et al.
, p. 4105 (1961)
Addition of some unreactive fluoroalkanes to tetrafluoroethylene.: Direct catalytic synthesis of F-butene-2
Petrov, Viacheslav A.,Krespan, Carl G.
, p. 199 - 204 (2007/10/03)
Condensation of trifluoromethanes, CF3X (X=H, Cl, Br, I), with tetrafluorethylene to form the corresponding F-n-propyl adducts have been carried out with aluminum chlorofluoride as catalyst. Yields of C3F7I and C3F7Br are especially good, making these useful perfluoropropyl intermediates readily available. Details of the reactions, especially the presence of low percentages of perfluoroisopropyl iodide and bromide in the products, are accounted for by proposed mechanisms involving halonium intermediates. Longer-chain primary iodides can also be added to tetrafluoroethylene, but the final products are predominantly fluoroolefins, with pentafluoroethyl iodide as a byproduct. In the case of the addition of C2F5I to tetrafluoroethylene, conditions for an efficient, low temperature dimerization of terafluoroethylene to F-butene-2 catalyzed by a combination of C2F5I/aluminum chlorofluoride have been defined. Evidence for an unusual transfer of I+ from the iodonium derivative of F-butene-2 to tetrafluoroethylene is presented.
Transformations of F-Alkyl Iodides and Bromides Induced by Nickel(0) Carbonyl
Krespan, Carl G.,Dixon, David A.
, p. 36 - 43 (2007/10/03)
Adducts of primary F-alkyl iodides with nickel carbonyl are formed readily in donor solvents and pyrolyze at 100-150 °C to give olefinic coupling products in high yield. The mechanism proposed to account for the observed chemistry involves preferential α-elimination of fluorine with formation of a carbenoid species complex coordinated to nickel. Differences in reaction paths among several types of substrate halides are rationalized on the basis of polarization of the Ni-C bond in the adducts. Support for these proposals is provided by state-of-the-art calculations.