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17256-52-9

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17256-52-9 Usage

Description

2-(difluoromethylene)-4,4,5-trifluoro-5-(trifluoromethyl)-1,3-dioxolane is a fluorinated chemical compound with the molecular formula C5H2F8O2. It features a dioxolane ring structure and contains multiple fluorine atoms, which confer unique chemical and physical properties to the compound. This makes it a versatile molecule for various industrial and research applications.

Uses

Used in Fluorinated Material Production:
2-(difluoromethylene)-4,4,5-trifluoro-5-(trifluoromethyl)-1,3-dioxolane is used as a key intermediate in the synthesis of fluorinated materials. The presence of fluorine atoms in its structure enhances the stability and reactivity of the resulting materials, making them suitable for a wide range of applications, including high-performance plastics, coatings, and films.
Used in Pharmaceutical Industry:
In the pharmaceutical industry, 2-(difluoromethylene)-4,4,5-trifluoro-5-(trifluoromethyl)-1,3-dioxolane is used as a building block for the development of novel drugs. The unique properties of fluorine, such as high electronegativity and small size, can improve the pharmacokinetic and pharmacodynamic profiles of drug candidates, leading to more effective and safer medications.
Used in Organic Synthesis:
2-(difluoromethylene)-4,4,5-trifluoro-5-(trifluoromethyl)-1,3-dioxolane is also utilized in organic synthesis as a versatile reagent and intermediate. Its ability to participate in various chemical reactions, such as fluorination, oxidation, and reduction, makes it a valuable tool for the synthesis of complex organic molecules and compounds with specific properties for research and industrial applications.

Check Digit Verification of cas no

The CAS Registry Mumber 17256-52-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,2,5 and 6 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 17256-52:
(7*1)+(6*7)+(5*2)+(4*5)+(3*6)+(2*5)+(1*2)=109
109 % 10 = 9
So 17256-52-9 is a valid CAS Registry Number.
InChI:InChI=1/C5F8O2/c6-1(7)2-14-3(8,4(9,10)11)5(12,13)15-2

17256-52-9SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-(difluoromethylene)-4,4,5-trifluoro-5-(trifluoromethyl)-1,3-dioxolane

1.2 Other means of identification

Product number -
Other names Einecs 241-290-0

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
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More Details:17256-52-9 SDS

17256-52-9Relevant articles and documents

CYCLODIMERIZATION OF PERFLUORO-2-METHYLENE-4-METHYL-1,3-DIOXOLANE

Yuminov, V. S.,Kartsov, S. V.,Maksimov, V. L.,Popova, O. A.,Makarov, K. M.

, p. 187 - 188 (1989)

-

FLUOROLACTONE AND METHOD FOR PRODUCING SAME

-

Paragraph 0298-0302, (2021/12/03)

The present disclosure provides, for example, a method that can produce a fluorolactone compound from hexafluoropropylene oxide or the like in a single step. The present disclosure relates to a method for producing a compound represented by formula (1): wherein two R1 are the same and each is a fluorine atom or a fluoroalkyl group, the method comprising step A of reacting a compound represented by formula (2): wherein R1 is as defined above, with a compound (3) represented by formula (3-1) or the like: wherein R31, R32, and R33 are the same or different and each is a hydrogen atom or a C1-10 alkyl group, or two of them are optionally linked to each other to form a ring optionally having one or more substituents, in the presence of a fluorine compound (4) represented by formula (4-1) or the like: [in-line-formulae]MHnFm(4-1)[/in-line-formulae] wherein M is a metal atom, n is 0 or 1, and the sum of the valence number of M and n is m, and an organic solvent, provided that the compound represented by formula (3) is excluded from the organic solvent.

Synthesis and characterization of an amorphous perfluoropolymer: Poly(perfluoro-2-methylene-4-methyl-1,3-dioxolane)

Mikes, Frantisek,Yang, Yu,Teraoka, Iwao,Ishigure, Takaaki,Koike, Yasuhiro,Okamoto, Yoshiyuki

, p. 4237 - 4245 (2007/10/03)

A perfluorinated monomer, perfluoro-2-methylene-4-methyl-1,3-dioxolane (PFMMD), was synthesized by various methods. The monomer was polymerized in bulk and/or in the solution by a free radical mechanism using perfluorodibenzoyl peroxide and/or perfluorodi-ferf-butyl peroxide as an initiators. The polymers obtained (poly(PFMMD)) were colorless and transparent. However, a polymer rod exposed to the atmosphere turned hazy. When the polymers were purified by precipitating the polymer solution into chloroform, they did not turn hazy when exposed to air for a long period of time and remained clear with a high UV-vis light transmittance. The glass transition temperature of the purified polymer was 130-134 °C. NMR measurements indicate that the purified polymers have mostly vinyl addition polymer structure. Nevertheless, we suppose that the pristine polymers contain structural units formed by ring-opening polymerization. The molecular weight of poly(PFMMD) samples can be regulated using carbon tetrachloride, carbon tetrabromide, and sulfuryl chloride as chain transfer agents. Polymerization in the presence of these regulators is characterized by nondegradative chain transfer. The intrinsic viscosity of poly(PFMMD) samples was determined in hexafluorobenzene. Hexafluorobenzene is a thermodynamically good solvent for poly(PFMMD). The molecular weights of poly(PFMMD)s were characterized by the intrinsic viscosity and dynamic light scattering (DLS). The refractive index of poly(PFMMD) between 400 and 1550 nm was between 1.3360 and 1.3270. The material dispersion of poly(PFMMD) is superior to that of a commercial polyd,1,2,4,4,5,5,6,7,7-decafluoro-3-oxa-l,6- heptadiene) (Cytop).

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