2-Methyl-1,4-benzenedicarboxylic acid

Base Information

• Chemical Name: 2-Methyl-1,4-benzenedicarboxylic acid
• CAS No.: 5156-01-4
• Molecular Formula: C9H8O4
• Molecular Weight: 180.16
• Hs Code.: 29173990
• Mol file: 5156-01-4.mol

Synonyms:Terephthalicacid, methyl- (6CI,7CI,8CI);2-Methylterephthalic acid;Methylterephthalicacid;NSC 20693;

Chemical Property of 2-Methyl-1,4-benzenedicarboxylic acid

Chemical Property:

• Vapor Pressure: 4.92E-15mmHg at 25°C
• Melting Point: 323-325 °C
• Refractive Index: 1.611
• Boiling Point: 388.2°C at 760 mmHg
• PKA: 3.38±0.25(Predicted)
• Flash Point: 202.8°C
• PSA: 74.60000
• Density: 1.377g/cm³
• LogP: 1.39140
• Storage Temp.: Sealed in dry,Room Temperature

Purity/Quality:

99% ^*data from raw suppliers

2-Methylterephthalic acid 98% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 2-Methyl-1,4-benzenedicarboxylic acid

There total 41 articles about 2-Methyl-1,4-benzenedicarboxylic 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: 100.0%

2-methyl-1,4-dicyanobenzene (55984-93-5) → 2-methylterephthalic acid (5156-01-4)

Guidance literature:

With sodium hydroxide; In diethylene glycol; at 150 ℃; for 48h;

DOI:10.1039/C6RA24064J

Reference yield: 92.0%

carbon dioxide (124-38-9,18923-20-1) → 2-methylterephthalic acid (5156-01-4)

Guidance literature:

1,4-dibromo-2-methylbenzene; With n-butyllithium; In hexane; at 60 ℃; for 20h;

carbon dioxide; In diethyl ether; hexane; at 20 ℃;

Reference yield: 84.0%

1,4-dibromo-2-methylbenzene (615-59-8) + carbon dioxide (124-38-9,18923-20-1) → 2-methylterephthalic acid (5156-01-4)

Guidance literature:

1,4-dibromo-2-methylbenzene; With iodine; magnesium; In tetrahydrofuran; at 50 - 65 ℃; for 6h;

carbon dioxide; In tetrahydrofuran; for 1h;

With hydrogenchloride; In tetrahydrofuran; water; at 20 ℃; for 1h;

upstream raw materials:

1,4-dibromo-2-methylbenzene

1,2,4-Trimethylbenzene

2-methyl-1,4-dicyanobenzene

4-isopropyl-2-methyl-benzaldehyde

Downstream raw materials:

diethyl 2-methylterephthalate

2-methylterephthalic acid dipentafluorophenylester

2-Methyl-1,4-benzoldicarbonsaeure dimethylester

2-bromomethyl-1,4-terephthalic acid dimethyl ester

Refernces

• 1、 Yang, Jie,Grzech, Anna,Mulder, Fokko M.,Dingemans, Theo J.. "Methyl modified MOF-5: A water stable hydrogen storage material". . p. 5244 - 5246. Retrieved 2011.
• 2、 Uemura, Takashi,Ono, Yukari,Hijikata, Yuh,Kitagawa, Susumu. "Functionalization of coordination nanochannels for controlling tacticity in radical vinyl polymerization". . p. 4917 - 4924. Retrieved 2010.
• 3、 -. "Method for preparing 1-oxo-1,3-dihydro-3-hydroxybenzofuran-5-formic acid". Paragraph 0031; 0033; 0035-0036. . Retrieved 2019/11/28.
• 4、 Nauroozi, Djawed,Pejic, Marijana,Schwartz, Pierre-Olivier,Wachtler, Mario,B?uerle, Peter. "Synthesis and solvent-free polymerisation of vinyl terephthalate for application as an anode material in organic batteries". . p. 111350 - 111357. Retrieved 2016/12/03.