3-<(3,5-di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidene)methyl>-phenol

Base Information

• Chemical Name: 3-<(3,5-di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidene)methyl>-phenol
• CAS No.: 81769-81-5
• Molecular Formula: C₃₅H₄₆O₃
• Molecular Weight: 514.748

Synonyms:3-<(3,5-di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidene)methyl>-phenol

Chemical Property of 3-<(3,5-di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidene)methyl>-phenol

Chemical Property:

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Technology Process of 3-<(3,5-di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidene)methyl>-phenol

There total 2 articles about 3-<(3,5-di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidene)methyl>-phenol 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:

3-Carboxyphenol (99-06-9) → 3-<(3,5-di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidene)methyl>-phenol (81769-81-5)

Guidance literature:

Multi-step reaction with 2 steps

1: triethylamine / toluene

2: 1.) n-butyllithium, 1,2-bis(dimethylamino)ethane, 2.) HCl / 1.) toluene, n-hexane, 0 deg C, 2.) CH₃OH

With hydrogenchloride; n-butyllithium; N,N,N,N,-tetramethylethylenediamine; triethylamine; In toluene;

DOI:10.1021/ja00378a013

Reference yield:

(4-Bromo-2,6-di-tert-butylphenoxy)trimethylsilane (27329-74-4) + 3-trimethylsiloxybenzoic acid trimethylsilyl ester (3782-84-1) → 3-<(3,5-di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidene)methyl>-phenol (81769-81-5)

Guidance literature:

With hydrogenchloride; n-butyllithium; N,N,N,N,-tetramethylethylenediamine; Yield given. Multistep reaction; 1.) toluene, n-hexane, 0 deg C, 2.) CH₃OH;

DOI:10.1021/ja00378a013

Reference yield: 17.0%

3-(chlorocarbonyl)-2,5-dihydro-2,2,5,5-tetramethylpyrrol-1-yloxy + 3-<(3,5-di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidene)methyl>-phenol (81769-81-5) → 1-<(3,5-di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidene)methyl>-3-<(2,5-dihydro-2,2,5,5-tetramethylpyrrol-1-yloxy-3-yl)(carbonyloxy)>benzene (81769-93-9)

Guidance literature:

With pyridine; for 2h; Ambient temperature;

DOI:10.1021/ja00378a013

upstream raw materials:

(4-Bromo-2,6-di-tert-butylphenoxy)trimethylsilane

3-trimethylsiloxybenzoic acid trimethylsilyl ester

3-Carboxyphenol

Downstream raw materials:

1-<(3,5-di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidene)methyl>-3-<(2,5-dihydro-2,2,5,5-tetramethylpyrrol-1-yloxy-3-yl)(carbonyloxy)>benzene

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