6922-60-7

Usage

InChI:InChI=1/C30H46O3/c1-27(2,3)21-13-19(14-22(25(21)31)28(4,5)6)17-33-18-20-15-23(29(7,8)9)26(32)24(16-20)30(10,11)12/h13-16,31-32H,17-18H2,1-12H3

Upstream product

• 14387-17-8 3,5-di-tert-butyl-4-hydroxybenzyl acetate 
• 10396-80-2 2,6-di-tert-butyl-4-hydroxy-4-methylcyclohexa-2,5-dienone 
• 88-26-6 3,5-di-tert-butyl-4-hydroxybenzyl alcohol 
• 88-27-7 N,N-dimethyl-(3,5-di-tert-butyl-4-hydroxybenzyl)amine 
• 752-60-3 tris-(3,5-di-tert-butyl-4-hydroxybenzyl)-amine 
• 1620-98-0 3,5-di-t-butyl-4-hydroxybenzaldehyde 

Downstream Products

• 118-82-1 4,4'-Methylenebis(2,6-di-tert-butylphenol) 

Relevant academic research and scientific papers

Unusual transformation of 4-hydroxy/methoxybenzylic alcohols via C[sbnd]C ipso-substitution reaction using proton-exchanged montmorillonite as media

We present here proton-exchanged montmorillonite-mediated an unusual transformation of 4-hydroxy and 4-methoxybenzylic alcohols to form symmetrical benzylic ethers and diarylmethanes under mild conditions. Nuclear magnetic resonance spectroscopy and density functional theory calculations support a plausible mechanism, which includes a distinctive aromatic C[sbnd]C ipso-substitution reaction with a hydroxymethyl group as the C-based leaving group.

2-(2′-hydroxyphenyl)benzotriazoles used as U.V. stabilizers

2-(2′-hydroxyphenyl)benzotriazoles having general formula (I). The above 2-(2′-hydroxyphenyl)benzotriazoles are useful as light stabilizers for organic polymers.

2-(2′-hydroxyphenyl) benzotriazoles containing a 2,4-imidazolidinedione group and process for their preparation

2-(2′-hydroxyphenyl)benzotriazoles having general formula (I). The above 2-(2′-hydroyzphenyl)benzotriazoles having general formula (I) are useful as heat, oxygen and light stabilizers for organic polymers. In particular they are useful as UV stabilizers for organic polymers.

2-(2'Hydroxyphenyl) benzotriazoles and process for their preparation

2-(2'-hydroxyphenyl)benzotriazoles having general formula (I): The above 2-(2'-hydroxyphenyl)benzotriazoles can be used as light stabilizers for organic polymers.

2-(2'Hydroxyphenyl) benzotriazoles and their use as light stabilizers for organic polymers

2-(2'-hydroxyphenyl)benzotriazoles having general formula (I): The above 2-(2'-hydroxyphenyl)benzotriazoles can be used as light stabilizers for organic polymers.

Reaction of 3,5-Di-tert-butyl-4-hydroxybenzyl Acetate with Amines

3,5-Di-tert-butyl-4-hydroxybenzyl acetate reacts with primary and secondary amines to give mainly the corresponding benzylamines. Base-catalyzed transformation of 3,5-di-tert-butyl-4-hydroxybenzyl acetate into 2,6-di-tert-butyl-4-methylene-2,5-cyclohexadienone occurs to a small extent. The major product of the reaction of 3,5-di-tert-butyl-4-hydroxybenzyl acetate with aqueous ammonia is bis(3,5-di-tert-butyl-4-hydroxybenzyl) ether which is formed by the action of ammonium acetate liberated during the process.

SUBSTITUTED DIALKYLAMINOMETHYLPHENOLS IN AN EXCHANGE REACTION WITH CARBOXYLIC ACID ANHYDRIDES

Carboxylic acid benzyl esters are formed in the reaction of carboxylic acid anhydrides with N,N-dialkyl-4(2)-hydroxy-substituted benzylamines. 4-Hydroxy-3,5-di-tert-butylbenzyl acetate exchanges an acetyl fragment for an alkoxyl fragment and benzylates phenol derivatives in the presence of an acid.

Reactions of 4-Hidroxycyclohexa-2,5-dienones under Acidic Conditions

The 4-hydroxy-4-phenyl-2,6-di-t-butylcyclohexa-2,5-dienone (2) undergoes reaction in acidic conditions to give, inter alia, derivatives of an arene-1,2-diol.In poorly nucleophilic media, the 1,1'-biphenyl-4-ol (16) and the 5-phenyl-o-benzoquinone (37) are the main products.Isolation of the 4-(2-methylpropyl)cyclohexadienone derivatives (41) and (42) provides the first examples of intermolecular trapping of a four-carbon unit.The products are consistent with the intervention of the phenoxenium ion (44); the formation of the 2-methyl-1,3-benzodioxole (43) testifies to the intermediacy of such a powerful oxidant.Whereas the 4- phenyl-2-t-butyl-p-quinol (5) gave a complex mixture from which only the 1,1'-biphenyl-4-ol derivative (24) was isolated, the 2,6-di-isopropyl- and 2,6-dimethyl-analogues (4) and (6) afforded mainly the arene-1,3-diol derivatives (48) and (47), respectively.The 4-methyl-2,6-di-t-butyl-p-quinol (7) gave products arising from nucleophilic attack on an intermediate p-quinone methide; dimers were the major products in the absence of a good nucleophile.