2,5-Difluoroterephthalic acid

Base Information

• Chemical Name: 2,5-Difluoroterephthalic acid
• CAS No.: 655-14-1
• Molecular Formula: C8H4 F2 O4
• Molecular Weight: 202.114
• Hs Code.: 2915900090
• European Community (EC) Number: 211-508-9
• DSSTox Substance ID: DTXSID50215804
• Nikkaji Number: J205.946K
• Wikidata: Q83091905
• Mol file: 655-14-1.mol

Synonyms:2,5-Difluoroterephthalic acid;655-14-1;C8H4F2O4;1,4-Benzenedicarboxylicacid, 2,5-difluoro-;EINECS 211-508-9;2,5-difluoroterephthalicacid;YSWG388;1,?4-?Benzenedicarboxylic acid, 2,?5-?difluoro-;SCHEMBL1713733;DTXSID50215804;C8-H4-F2-O4;MFCD00042502;AKOS028113494;AS-75758;2,5-difluorobenzene-1,4-dicarboxylic acid;CS-0163371;FT-0766392;EN300-233462;F16071;Z1269187918

Chemical Property of 2,5-Difluoroterephthalic acid

Chemical Property:

• Vapor Pressure: 3.94E-06mmHg at 25°C
• Melting Point: 325-330 °C
• Boiling Point: 370.1°C at 760 mmHg
• PKA: 2.22±0.10(Predicted)
• Flash Point: 177.6°C
• PSA: 74.60000
• Density: 1.644g/cm³
• LogP: 1.36120
• Storage Temp.: Sealed in dry,Room Temperature
• XLogP3: 1.2
• Hydrogen Bond Donor Count: 2
• Hydrogen Bond Acceptor Count: 6
• Rotatable Bond Count: 2
• Exact Mass: 202.00776493
• Heavy Atom Count: 14
• Complexity: 230

Purity/Quality:

99%, ^*data from raw suppliers

2,5-Difluoroterephthalicacid 97% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1=C(C(=CC(=C1F)C(=O)O)F)C(=O)O

Technology Process of 2,5-Difluoroterephthalic acid

There total 10 articles about 2,5-Difluoroterephthalic acid which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 92.0%

2,5-difluoro-1,4-dicyanobenzene (1897-49-0) → 2,5-difluoro-1,4-benzenedicarboxylic acid (655-14-1)

Guidance literature:

With phosphoric acid; at 160 ℃; for 24h;

Reference yield: 80.0%

1,4-bis(bromomethyl)-2,5-difluorobenzene (35335-08-1) → 2,5-difluoro-1,4-benzenedicarboxylic acid (655-14-1)

Guidance literature:

With sodium periodate; sulfuric acid; In water; at 95 ℃; for 24h;

DOI:10.1016/j.jfluchem.2008.06.028

Reference yield:

2,5-difluoro-4-methyl-benzoic acid (103877-80-1) → 2,5-difluoro-1,4-benzenedicarboxylic acid (655-14-1)

Guidance literature:

With potassium permanganate; In water; at 100 ℃;

upstream raw materials:

1,4-Difluor-2,5-bis-trifluormethyl-benzol

1,2,4,5-tetrafluoro-3,6-bis-trifluoromethyl-benzene

2,5-difluoro-3,6-bis(trifluoromethyl)benzene-1,4-dithiol

2,5-bis(trifluoromethyl)-3,4,6-trifluorobenzenethiol

Refernces

• 1、 -. "COBALT COMPLEX AND METHOD FOR PRODUCING THE SAME". Paragraph 0079-0080; 0084-0086. . Retrieved 2020/10/16.
• 2、 -. "Aryl or heteroaryl amides of tetrahydronaphthalene, chroman, thichroman and 1,2,3,4-tetrahydroquinolinecarboxlic acids, having an electron withdrawing substituent in the aromatic or heteroaromatic moiety, having retinoid-like biological activity". Page column 26. . Retrieved 2010/11/29.