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

Base Information

• Chemical Name: 4-<(3,5-di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidene)methyl>-4'-hydroxybiphenyl
• CAS No.: 81769-83-7
• Molecular Formula: C₄₁H₅₀O₃
• Molecular Weight: 590.846

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

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

Chemical Property:

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

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

4'-Hydroxybiphenyl-4-carboxylic acid (58574-03-1) → 4-<(3,5-di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidene)methyl>-4'-hydroxybiphenyl (81769-83-7)

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) + C19H26O3Si2 (129459-07-0) → 4-<(3,5-di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidene)methyl>-4'-hydroxybiphenyl (81769-83-7)

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: 26.0%

3-(chlorocarbonyl)-2,5-dihydro-2,2,5,5-tetramethylpyrrol-1-yloxy + 4-<(3,5-di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidene)methyl>-4'-hydroxybiphenyl (81769-83-7) → 4-<(3,5-di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidene)methyl>-4'-<(2,5-dihydro-2,2,5,5-tetramethylpyrrol-1-yloxy-3-yl)(carbonyloxy)>biphenyl (81769-97-3)

Guidance literature:

With pyridine; for 2h; Ambient temperature;

DOI:10.1021/ja00378a013

upstream raw materials:

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

C₁₉H₂₆O₃Si₂

4'-Hydroxybiphenyl-4-carboxylic acid

Downstream raw materials:

4-<(3,5-di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dienylidene)methyl>-4'-<(2,2,6,6-tetramethylpiperidin-1-yloxy-4-yl)(carbonyloxy)>biphenyl

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

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