5875-45-6

Basic information

• Product Name: 2,5-DI-TERT-BUTYLPHENOL
• Synonyms: 2,5-DI-TERT-BUTYLPHENOL;2,5-bis(1,1-dimethylethyl)-pheno;2,5-bis(1,1-dimethylethyl)-Phenol;Phenol, 2,5-di-tert-butyl-;DI-TERT-BUTYLPHENOL;Phenol, 2,5-bis(1,1-dimethylethyl;Einecs 227-543-8;Nsc 68767
• CAS NO: 5875-45-6
• Molecular Formula: C₁₄H₂₂O
• Molecular Weight: 206.32
• EINECS: 227-543-8
• Mol File: 5875-45-6.mol

Chemical Properties

• Melting Point: 141.1-142.2 °C
• Boiling Point: 283.4 °C at 760 mmHg
• Flash Point: 130.6 °C
• Appearance: /
• Density: 0.932 g/cm³
• Vapor Pressure: 0.00185mmHg at 25°C
• Refractive Index: 1.498
• PKA: 11.46±0.10(Predicted)
• CAS DataBase Reference: 2,5-DI-TERT-BUTYLPHENOL(CAS DataBase Reference)
• NIST Chemistry Reference: 2,5-DI-TERT-BUTYLPHENOL(5875-45-6)
• EPA Substance Registry System: 2,5-DI-TERT-BUTYLPHENOL(5875-45-6)

Safety Data

• RIDADR: 3077
• HazardClass: 9
• PackingGroup: III
• Hazardous Substances Data: 5875-45-6(Hazardous Substances Data)

Usage

Uses

Used in Chemical Industry:
2,5-Di-Tert-Butylphenol is used as an antioxidant for [application reason] to enhance the stability and performance of synthetic rubber, jet fuels, and electrical insulator materials. Its presence helps in preventing the degradation of these materials, thereby extending their service life and ensuring their reliability.
Used in Synthetic Rubber Production:
2,5-Di-Tert-Butylphenol is used as a stabilizing agent for [application reason] to protect synthetic rubber from oxidative degradation, which can lead to a loss of mechanical properties and performance over time. By incorporating this antioxidant, the durability and longevity of synthetic rubber products can be significantly improved.
Used in Jet Fuels:
2,5-Di-Tert-Butylphenol is used as a fuel additive for [application reason] to prevent the oxidation of jet fuels, which can cause engine deposits and reduce the efficiency of aircraft engines. The inclusion of this antioxidant helps in maintaining the quality of jet fuels and ensuring the smooth operation of aircraft engines.
Used in Electrical Insulator Materials:
2,5-Di-Tert-Butylphenol is used as a protective agent for [application reason] to safeguard electrical insulator materials from oxidative damage, which can compromise their insulating properties and lead to potential electrical hazards. By incorporating this antioxidant, the performance and safety of electrical insulator materials can be effectively maintained.

InChI:InChI=1/C14H22O/c1-13(2,3)10-7-8-11(12(15)9-10)14(4,5)6/h7-9,15H,1-6H3

Upstream product

• 507-20-0 tertiary butyl chloride 
• 585-34-2 3-tert-butylphenyol 
• 88-18-6 2-tert-Butylphenol 
• 6683-74-5 2-bromo-1,4-di-tert-butylbenzene 
• 594-19-4 tert.-butyl lithium 
• 128-39-2 2,6-di-tert-butylphenol 
• 253185-03-4 tert-butylbenzene 
• 1012-72-2 1,4-di-tert-butylbenzene 
• 71-43-2 benzene 
• 64-17-5 ethanol 
• 90-05-1 2-methoxy-phenol 
• 123-31-9 hydroquinone 
• 75-65-0 tert-butyl alcohol 
• 123-07-9 4-Ethylphenol 

Downstream Products

• 5651-80-9 3-tert-Butyl-2,4,6-trinitro-phenol 
• 22385-79-1 2-Brom-3,6-di-tert.butyl-phenol 
• 22385-78-0 4-bromo-2,5-di-tert-butylphenol 
• 22479-28-3 2,4-Dinitro-3,6-di-tert.butyl-phenol 
• 22385-87-1 4-(4-Nitro-benzolazo)-2,5-di-tert.-butyl-phenol 
• 22385-88-2 2-(4-Nitro-benzolazo)-3,6-di-tert.-butyl-phenol 
• 585-34-2 3-tert-butylphenyol 
• 88-18-6 2-tert-Butylphenol 
• 40662-78-0 Propionic acid 2,5-di-tert-butyl-phenyl ester 
• 55143-06-1 3-(2,5-Di-tert-butyl-phenoxy)-propane-1,2-diol 
• 51202-09-6 3,6-Di-tert-butyl-2,4,4-trichloro-cyclohexa-2,5-dienone 
• 194734-55-9 1-(3,5-di-tert-butyl-2-hydroxybenzyl)-4,7-dimethyl-1,4,7-triazacyclononane 

Relevant articles and documents

Method for synthesizing tert-butylhydroquinone

The invention discloses a method for synthesizing tert-butylhydroquinone, and relates to tert-butylhydroquinone. The invention provides a synthesis method of tert-butylhydroquinone, and the method hasthe advantages of simple process and lower cost. The method comprises the following steps: 1) sequentially adding a catalyst sulfamic acid, a solvent toluene or xylene, tert-butyl alcohol, hydroquinone and 1, 4-dioxane into a heatable pressure-resistant reactor for reaction at 120-150 DEG C for 4-12 hours; 2) after the reaction is finished, adding ethanol, filtering to remove the catalyst sulfamic acid, and removing the solvent to obtain a crude product; 3) purifying the crude product obtained in the step 2) to obtain the product tert-butylhydroquinone. The defects that catalysts with high corrosivity are needed in the existing synthesis process, the process cost is high, the environmental pollution is serious, and the reaction selectivity is low are overcome.

Structural features and antioxidant activities of Chinese quince (Chaenomeles sinensis) fruits lignin during auto-catalyzed ethanol organosolv pretreatment

Chinese quince fruits (Chaenomeles sinensis) have an abundance of lignins with antioxidant activities. To facilitate the utilization of Chinese quince fruits, lignin was isolated from it by auto-catalyzed ethanol organosolv pretreatment. The effects of three processing conditions (temperature, time, and ethanol concentration) on yield, structural features and antioxidant activities of the auto-catalyzed ethanol organosolv lignin samples were assessed individually. Results showed the pretreatment temperature was the most significant factor; it affected the molecular weight, S/G ratio, number of β-O-4′ linkages, thermal stability, and antioxidant activities of lignin samples. According to the GPC analyses, the molecular weight of lignin samples had a negative correlation with pretreatment temperature. 2D-HSQC NMR and Py-GC/MS results revealed that the S/G ratios of lignin samples increased with temperature, while total phenolic hydroxyl content of lignin samples decreased. The structural characterization clearly indicated that the various pretreatment conditions affected the structures of organosolv lignin, which further resulted in differences in the antioxidant activities of the lignin samples. These results can be helpful for controlling and optimizing delignification during auto-catalyzed ethanol organosolv pretreatment, and they provide theoretical support for the potential applications of Chinese quince fruits lignin as a natural antioxidant in the food industry.

Guaiacol demethoxylation catalyzed by Re2O7 in ethanol

Re2O7 is used to convert guaiacol in alcohols at 280–320 °C. In ethanol, guaiacol is deoxygenated and alkylated, and the major products are phenol and alkylphenols (including ethylphenol, diethylphenol, diisopropylphenol, di-tert-butylphenol and 2,6-di-tert-butyl-4-ethylphenol), accounting for 97 mol% of all products after 6 hour reaction at 320 °C. Both catechol and phenol are the intermediates of guaiacol demethoxylation. Among the substituents, ethyl is directly provided by ethanol while isopropyl and tert-butyl are formed by the addition of methyl to ethyl step by step. In addition, Re2O7 has negligible activity for the saturation of benzene ring so it does not cause considerable over-consumption of reductant. The actual catalyst for guaiacol demethoxylation is likely a ReIV?VI species.

Method for preparing hydrocarbyl phenol by catalytic conversion of phenolic compound in presence of molybdenum-based catalyst

The invention discloses a method for preparing hydrocarbyl phenol by catalytic conversion of a phenolic compound in the presence of a molybdenum-based catalyst. The method comprises mixing a phenoliccompound, a molybdenum-based catalyst and a reaction solvent, adding the mixture into a sealed reactor, feeding gas into the reactor, heating the mixture to 150-350 DEG C, carrying out stirring for areaction for 0.5-2h, then filtering to remove a solid catalyst and carrying out rotary evaporateion to obtain a liquid product. The phenolic compound has a wide source, a cost is low, product alkyl phenol selectivity is high, an added value is high, alcohol or an alcohol-water mixture is used as a reaction solvent, environmental friendliness is realized, pollution is avoided, any inorganic acids and alkalis are avoided in the reaction process, the common environmental pollution problems in the biomass processing technology are solved, the reaction conditions are mild, the process can be carried out at a low temperature, high-efficiency conversion of the reactants can be realized without consuming hydrogen gas and the method is suitable for large-scale industrial trial production.