1991-52-2

Usage

Uses

2,5-Di-tert-butyl-4-methoxyphenol is used as a non-tumorigenic compound in contrast to DBHQ.

InChI:InChI=1/C15H24O2/c1-14(2,3)10-9-13(17-7)11(8-12(10)16)15(4,5)6/h8-9,16H,1-7H3

Upstream product

• 150-76-5 4-methoxy-phenol 
• 75-65-0 tert-butyl alcohol 
• 489-01-0 2,6-Di-t-butyl-4-methoxyphenol 
• 507-20-0 tertiary butyl chloride 
• 88-58-4 2,5-bis(1,1-dimethylethyl)-1,4-benzenediol 
• 616-38-6 carbonic acid dimethyl ester 
• 7664-93-9 sulfuric acid 
• 115-11-7 isobutene 
• 71-43-2 benzene 
• 110-54-3 hexane 
• 86119-84-8 phosphoric acid 

Downstream Products

• 88-32-4 3-tert-butyl-4-methoxyphenol 
• 121-00-6 3-tert-Butyl-4-hydroxyanisole 
• 150-76-5 4-methoxy-phenol 
• 7323-63-9 1,4-di-tert-butyl-2,5-dimethoxybenzene 
• 103325-37-7 4-tert-butoxy-2,6-di-tert-butyl-4-(2,5-di-tert-butyl-4-methoxy-phenoxy)-cyclohexa-2,5-dienone 
• 34967-35-6 2.5.3'.5'-Tetratert_.-butyl-4-methoxy-4'-hydroxy-diphenylaether 
• 1462876-54-5 C₁₈H₂₉BrO₂ 
• 1462876-55-6 C₂₂H₃₅N₂O₂⁽¹⁺⁾*Br^(1-) 
• 1462876-58-9 C₂₂H₃₅N₂O₂⁽¹⁺⁾*F₆P^(1-) 
• 1462876-57-8 C₂₂H₃₅N₂O₂⁽¹⁺⁾*C₂F₆NO₄S₂^(1-) 
• 1266319-19-0 3-(2,5-di-tert-butyl-4-methoxy-phenoxy)-propan-1-ol 
• 1158537-26-8 4,5-bis(2,5-di-tert-butyl-4-methoxyphenoxy)phthalonitrile 
• 103325-38-8 2-tert-butoxy-4,6-di-tert-butyl-4-(2,5-di-tert-butyl-4-methoxy-phenoxy)-cyclohexa-2,5-dienone 

Relevant academic research and scientific papers

4-Formyl amino-n-methylpiperidine derivatives, the use thereof as stabilisers and organic material stabilised therewith

The present invention relates to 4-formylamino-N-methylpiperidine derivatives of the formula (I) where the variables are as defined in the Description, to a process for preparing these piperidine derivatives, to the use of these piperidine derivatives of the invention, or prepared according to the invention, for stabilizing organic material, in particular for stabilizing plastics or coating materials, and also to the use of these piperidine derivatives of the invention, or prepared according to the invention, as light stabilizers or stabilizers for wood surfaces. The present invention further relates to stabilized organic material which comprises these piperidine derivatives of the invention or prepared according to the invention.

Efficient synthesis of 2,5-di-t-butyl-4-fluorophenol

When 4-fluorophenol was refluxed with excess of t-butyl chloride in the presence of various catalysts, e.g. Envirocat EPZG, EPZ10, EPIC, sulfated zirconia, natural kaolinitic clay, zirconium nitrate, zinc chloride and bismuth nitrate, the product obtained was 2,5,di-t-butyl 4-fluorophenol in excellent yield.

Synthesis of 2,5- and 2,6-di-t-butyl-4-halo- or -4-methoxy-phenols using silica, lithium perchlorate and lithium bromide as neutral catalysts

When a mixture of 4-halo- or 4-methoxy-phenol and excess of t-butyl chloride in the presence of neutral catalyst such as silica or lithium perchlorate or lithium bromide was refluxed, 2,5-and 2,6-di-t-butyl-4-halo or 4-methoxy phenols were obtained in good yields.

Preparation of aralkyl phenyl ethers and alkyl phenyl ethers

Phenol ethers are prepared by reacting phenols with dialkyl carbonates in the presence of tertiary amines and/or phosphines. The aralkyl aryl ethers and alkyl aryl ethers obtained are starting materials for the manufacture of dyes, crop protection agents and scents.

Piperidine derivatives

New 1- and 4-substituted piperidines are stabilizers for organic material. They are produced by reacting corresponding 1-substituted piperidinols with acid chlorides or corresponding 4-substituted piperidines with a compound introducing into the 1-position a residue.

Piperidine derivatives

New piperidine derivatives of 1,3-pyrimidine and 1,3,5-triazine are used as stabilizers for organic materials, especially for polymers.

Hydroxyaryl-tetramethyl-piperidines

New 4-(4'-hydroxyaryl)-2,2,6,6-tetramethyl-piperidines are used as stabilisers for organic materials, especially for polymers.

Substituted piperidin-4-ols

Disclosed are stabilized compositions comprising a polymer, especially polyolefines, and a minor proportion of a 1,2,2,6,6-pentasubstituted piperidin-4-ol. The new compositions possess good light stability.

Substituted piperazines and polymeric compositions stabilized thereby

Substituted piperazines are stabilizers for synthetic polymeric materials normally subject to deterioration caused by ultraviolet light. The compounds are prepared by the alkylation reaction between a substituted piperazine dione and an organic halide followed by reduction with lithium aluminum hydride. Polymeric compsitions containing these stabilizers may also contain a hindered phenolic compound. A typical embodiment is 15,15'-dodecamethylene-bis(7,15-diazadispiro[5,1,5,3]hexadecane).

Substituted piperazine diones and polymeric compositions stabilized thereby

Substituted piperazine diones are stabilizers for synthetic polymeric materials normally subject to deterioration caused by ultraviolet light. The compounds are prepared by the alkylation reaction between a substituted piperazine dione and an organic halide. Polymeric compositions containing these stabilizers may also contain a hindered phenolic compound. A typical embodiment is 15,15'-dodecamethylenebis(7,15-diazadispiro[5,1,5,3]hexadecane-14,16-dione).