1620-98-0

Basic information

• Product Name: 3,5-Di-tert-butyl-4-hydroxybenzaldehyde
• Synonyms: 3,5-;3,5-4-;3,5-di-tert-butyl-4-hydroxy-benzaldehyd;4-Formyl-2,6-di-tert-butylphenol;Benzaldehyde, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-;Benzaldehyde, 3,5-di-tert-butyl-4-hydroxy-;Benzaldehyde, 4-hydroxy-3,5-di-tert.-butyl;Benzoic aldehyde, 3,5-di-t-butyl-4-hydroxy-
• CAS NO: 1620-98-0
• Molecular Formula: C₁₅H₂₂O₂
• Molecular Weight: 234.33
• EINECS: 216-592-0
• Product Categories: Aromatic Aldehydes & Derivatives (substituted)
• Mol File: 1620-98-0.mol
• Article Data: 60

Chemical Properties

• Melting Point: 186-190 °C
• Boiling Point: 336.66°C (rough estimate)
• Flash Point: 121.6 °C
• Appearance: Light yellow to yellow-beige/Crystalline Powder
• Density: 1.0031 (rough estimate)
• Vapor Pressure: 0.00128mmHg at 25°C
• Refractive Index: 1.5542 (estimate)
• Storage Temp.: Inert atmosphere,Room Temperature
• Solubility: Soluble in hot methanol.
• PKA: 8.33±0.40(Predicted)
• Sensitive: Air Sensitive
• BRN: 982526
• CAS DataBase Reference: 3,5-Di-tert-butyl-4-hydroxybenzaldehyde(CAS DataBase Reference)
• NIST Chemistry Reference: 3,5-Di-tert-butyl-4-hydroxybenzaldehyde(1620-98-0)
• EPA Substance Registry System: 3,5-Di-tert-butyl-4-hydroxybenzaldehyde(1620-98-0)

Safety Data

• Hazard Codes: Xi,T
• Statements: 36/37/38-36-25
• Safety Statements: 24/25-45-26-36/37
• RTECS: CU5610070
• Hazardous Substances Data: 1620-98-0(Hazardous Substances Data)

Usage

Uses

3,5-Di-tert-butyl-4-hydroxybenzaldehyde is employed as an OLED materials. It is also used as a pharmaceutical intermediate. The derivatives of this compound possess equipotent anti-inflammatory activities to indomethacin.

InChI:InChI=1/C15H22O2/c1-14(2,3)11-7-10(9-16)8-12(13(11)17)15(4,5)6/h7-9,17H,1-6H3

Upstream product

• 87-97-8 2,6-di-tert-butyl-4-methoxymethylene-phenol 
• 128-37-0 2,6-di-tert-butyl-4-methyl-phenol 
• 7019-91-2 2,6-di-tert.-butyl-4-isobutylidene-2,5-cyclohexadien-one 
• 72637-10-6 2,6-di-tert-butyl-4-(1,1,3,3-tetraoxo-1λ⁶,3λ⁶-[1,3]dithiolan-2-ylidene)-cyclohexa-2,5-dienone 
• 52697-12-8 2,6-di-tert-butyl-4-(prop-1-en-1-yl)phenol 
• 37636-53-6 N,N'-dibromo-2,5-piperazinedione (NBP) 
• 75-65-0 tert-butyl alcohol 
• 110-83-8 cyclohexene 
• 111-27-3 hexan-1-ol 
• 106-99-0 buta-1,3-diene 
• 513-81-5 2,3-dimethyl-buta-1,3-diene 
• 78-79-5 isoprene 
• 22719-43-3 Coppinger's Radikal 
• 19382-02-6 4-hydroxy-3,5-di-tert-butylbenzylidene dichloride 

Downstream Products

• 3293-92-3 2-cyano-3-(3,5-di-tert-butyl-4-hydroxy-phenyl)-acrylic acid ethyl ester 
• 22014-02-4 diethyl 2-(3,5-di-tert-butyl-4-hydroxybenzylidene)malonate 
• 24985-15-7 1-<4-Hydroxy-3.5-di-tert.-butyl-phenyl>-2-cyan-2-phenyl-aethylen 
• 113465-77-3 α-<3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl>-3-methyl-5-isoxazoleethanol 
• 103199-53-7 N-methyl-3-(3,5-di-tert-butyl-4-hydroxybenzylidene)pyrrolidin-2-one 
• 116376-81-9 (E)-3-(3,5-di-tert-butyl-4-hydroxyphenyl)-1-(3-thienyl)-2-propen-1-one 
• 154052-53-6 (Z)-5-<<3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl>methylene>-1-methyl-2-thioxo-4-imidazolidinone 
• 116376-62-6 (E)-2,6-di-tert-butyl-4-<2-(3-pyridinyl)ethenyl>phenol 
• 74684-36-9 5,10,15,20-tetrakis(3,5-di-tert-butyl-4-hydroxyphenyl)porphyrin 
• 123417-66-3 C₆₀H₆₂N₄O₄ 
• 123417-67-4 C₆₀H₆₂N₄O₄ 
• 123417-65-2 C₆₈H₇₈N₄O₄ 
• 123417-62-9 C₆₀H₆₂N₄O₄ 
• 123417-64-1 2,6-Di-tert-butyl-4-[(5Z,10Z,14Z,19Z)-10,15,20-tris-(4-hydroxy-phenyl)-porphyrin-5-yl]-phenol 

Relevant articles and documents

Oxidation of Phenols and Hydroquinones by Dioxygen Catalyzed by Mixed Addenda Heteropolyoxometalate on Active Carbon (NPV6Mo6/C)

Vanadomolybdophosphate supported on active carbon, NPV6Mo6/C, catalyzed the oxidation and coupling reaction of 2,3,6-trimethylphenol by dioxygen to give trimethyl-p-benzoquinone and 4,4'-dihydroxy-2,2',3,3',5,5'-hexamethylbiphenyl, respectively, depending on the solvent used.Hydroquinones and benzyl alcohol were selectively dehydrogenated by the present system, giving the corresponding p-benzoquinones and benzaldehyde, respectively, in good yields.

High diastereoselective [4 + 2] annulation of β,γ-unsaturated α-keto esters and p-quinone methides: Approach to polysubstituted 4-aryl chromans and tetrahydroquinolines

DBU-mediated [4 + 2] annulation of β,γ-unsaturated α-keto esters and p-quinone methides has been developed. Under mild conditions, the reaction afforded polysubstituted 4-aryl chromans and tetrahydroquinolines as single diastereoisomer in high yields (up

Highly selective conversion of guaiacol to: Tert -butylphenols in supercritical ethanol over a H2WO4 catalyst

The conversion of guaiacol is examined at 300 °C in supercritical ethanol over a H2WO4 catalyst. Guaiacol is consumed completely, meanwhile, 16.7% aromatic ethers and 80.0% alkylphenols are obtained. Interestingly, tert-butylphenols are produced mainly with a high selectivity of 71.8%, and the overall selectivity of 2,6-di-tert-butylphenol and 2,6-di-tert-butyl-4-ethylphenol is as high as 63.7%. The experimental results indicate that catechol and 2-ethoxyphenol are the intermediates. Meanwhile, the WO3 sites play an important role in the conversion of guaiacol and the Br?nsted acid sites on H2WO4 enhance the conversion and favour a high selectivity of the tert-butylphenols. The recycling tests show that the carbon deposition on the catalyst surface, the dehydration and partial reduction of the catalyst itself are responsible for the decay of the H2WO4 catalyst. Finally, the possible reaction pathways proposed involve the transetherification process and the alkylation process during guaiacol conversion.

Preparation method of 3,5-di-tert-butyl-4-hydroxybenzyl alcohol

The invention discloses a preparation method of 3,5-di-tert-butyl-4-hydroxybenzyl alcohol and belongs to the technical field of organic synthesis. In the technical scheme, a reaction is carried out to 2,6-di-tert-butyl-phenol and a Vilsmeier reagent in a non-protonic solvent at 60-80 DEG C to generate 3,5-di-tert-butyl-4-hydroxybenzaldehyde; and then the 3,5-di-tert-butyl-4-hydroxybenzaldehyde is reacted with a strong-protonic reducing agent to generate the target product, 3,5-di-tert-butyl-4-hydroxybenzyl alcohol. The method is free of special catalyst and is free of gas in the reactions, is high in reaction yield, and is free of complex product post-treatment step, so that the method has wide application prospect.