422-54-8

Usage

Uses

Used in Refrigeration Industry:
1,3,3-trichloro-1,1,2,2-tetrafluoropropane was used as a refrigerant in various cooling systems due to its thermodynamic properties, which made it suitable for maintaining low temperatures in commercial and industrial applications.
Used in Foam Production Industry:
CFC-113a was also utilized in the production of foam-blowing agents, where it served to create the desired cellular structure in foam materials for insulation and cushioning purposes.
However, due to its detrimental impact on the ozone layer, the use of 1,3,3-trichloro-1,1,2,2-tetrafluoropropane has been largely discontinued as per international regulations such as the Montreal Protocol. The industry has since transitioned to more environmentally friendly alternatives that do not contribute to ozone depletion.

InChI:InChI=1/C3HCl3F4/c4-1(5)2(7,8)3(6,9)10/h1H

Upstream product

• 116-14-3 polytetrafluoroethylene 
• 67-66-3 chloroform 
• 422-00-4 1,3-dichloro-1,1,2,2,3-pentafluoropropane 
• 75-43-4 Dichlorofluoromethane 
• 79-38-9 Chlorotrifluoroethylene 
• 75-69-4 trichlorofluoromethane 
• 2268-46-4 freon-214 
• 75-45-6 Chlorodifluoromethane 
• 7446-70-0 aluminium trichloride 
• 7782-50-5 chlorine 
• 679-85-6 3-chloro-1,1,2,2-tetrafluoropropane 

Downstream Products

• 421-75-0 1-chloro-1,1,2,2-tetrafluoropropane 
• 422-00-4 1,3-dichloro-1,1,2,2,3-pentafluoropropane 
• 422-57-1 3-chloro-1,1,1,2,2,3-hexafluoropropane 
• 422-55-9 1-chloro-1,1,2,2,3,3-hexafluoropropane 
• 422-56-0 3,3-dichloro-1,1,1,2,2-pentafluoropropane 
• 507-55-1 1,3-dichloro-1,1,2,2,3-pentafluoropropane 

Relevant academic research and scientific papers

PROCESS FOR REFINING HCFC-224ca AND/OR CFO-1213ya, PROCESS FOR PRODUCING HCFC-224ca, AND PROCESS FOR PRODUCING CFO-1213ya

PROBLEM TO BE SOLVED: To provide a process in which a difficult-to-separate HCFC-224ab can easily be removed and HCFC-224ca and/or CFO-1213ya can be produced with high purity and high yield. SOLUTION: Provided is a process for refining HCFC-224ca and/or CFO-1213ya, comprising a step of removing at least a portion of said HCFC-224ab from a mixture containing 1,1,3-trichloro-2,2,3,3-tetrafluoropropane (HCFC-224ca) and/or 1,1,3-trichloro-2,3,3-trifluoropropene (CFO-1213ya) and 1,2,2-trichloro-1,1,3,3-tetrafluoropropane (HCFC-224ab). SELECTED DRAWING: None COPYRIGHT: (C)2019,JPOandINPIT

PROCESS FOR PRODUCTION OF 2,3,3,3-TETRAFLUOROPROPENE

The present invention provides a process for producing 2,3,3,3-tetrafluoropropene including the following reaction steps: (i) reducing a halogenated fluoropropane represented by formula (1): ACF2CF2CH2FyAz, wherein A is Cl, Br, or I; x is an integer from 0 to 2; y and z are each an integer from 0 to 3; and the total number of x, y, and z is 3, to produce a 1-halogenated-1,1,2,2-tetrafluoropropane represented by formula (2): ACF2CF2CH3; and (ii) contacting the 1-halogenated-1,1,2,2-tetrafluoropropane obtained in step (i) with a catalyst in a gas phase to produce 2,3,3,3-tetrafluoropropene. According to the invention, 2,3,3,3-tetrafluoropropene (HFO-1234yf) can be produced in a high yield, using inexpensive starting materials.

19F nuclear magnetic resonance studies of halogenated propanes

The relationship between 19F chemical shifts in halogenated propanes and their structures are elucidated using MNDO calculations to determine the population of rotamers.The pairs of atom gauche to a fluorine atom and van der Waals interaction between the two terminal substituents are responsible for the 19F chemical shifts.The differences among chemical shifts in diastereomers are also discussed in terms of the conformation of molecule.

Synthesis of > and Some Chlorofluoropropenes

The starting substances C3Cl5F3 (1) and C3Cl4F4 (2) prepared earlier by the addition of CCl3F with CClF=CClF and/or CF2=CClF were utilized for the synthesis of chlorofluoropropenes by means of fluorination, reduction of C-Cl bonds in halogenopropanes, and final dehalogenation, all the reactions being performed at atmospheric pressure.The reaction conditions permit laboratory scale production.The contents of the isomeric admixtures in the resultant products were determined by NMR spectroscopy.The starting halogenopropanes 1, 2 represent mixtures of isomers, but in course of the individual synthetic steps the content of the main isomer was generally increased.In comparison with previously used syntheses, our procedure proves advantageous for the synthesis of "perfluoroallylchloride" (9a, isomer purity 95percent).Using this procedure a number of halogenopropanes were prepared and dechlorinated to give the corresponding halogenopropenes (isomer purity percent): CClF2-CClF-CCl2F (2a, 87), CF3-CClF-CCl3 (2b, 78), CClF2-CClF-CClF2 (3a, 87), CF3-CClF-CCl2F (3b, 90), CF3-CClF-CHCl2 (5a, 90), CF3-CClF-CHClF (6a, 73), CClF2-CF=CClF (8a, 93), CF3-CF=CCl2 (8b, 84), 9a, CF3-CF=CClF (9b, 86) and CF3-CF=CHCl (11a, 84).The minor isomers in substance 2 yielded products which were isolated after being combined from several preparations: CClF2-CF2-CHCl2 (5b, 84); CClF2-CF=CHCl (10a, 98), which by addition of chlorine yielded CClF2-CClF-CHCl2 (4a, 95).The NMR spectra of all the major and minor products, excluding perhalogenopropanes, are listed.