Benzene, 1,1'-(1,3-butadiyne-1,4-diyl)bis[3-(1,1-dimethylethyl)-5-[4-[3-(1,1-dimeth ylethyl)-5-ethynylphenyl]-1,3-butadiynyl]-

Base Information

• Chemical Name: Benzene, 1,1'-(1,3-butadiyne-1,4-diyl)bis[3-(1,1-dimethylethyl)-5-[4-[3-(1,1-dimeth ylethyl)-5-ethynylphenyl]-1,3-butadiynyl]-
• CAS No.: 186772-55-4
• Molecular Formula: C56H50
• Molecular Weight: 723.013
• Mol file: 186772-55-4.mol

Synonyms:

Chemical Property of Benzene, 1,1'-(1,3-butadiyne-1,4-diyl)bis[3-(1,1-dimethylethyl)-5-[4-[3-(1,1-dimeth ylethyl)-5-ethynylphenyl]-1,3-butadiynyl]-

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of Benzene, 1,1'-(1,3-butadiyne-1,4-diyl)bis[3-(1,1-dimethylethyl)-5-[4-[3-(1,1-dimeth ylethyl)-5-ethynylphenyl]-1,3-butadiynyl]-

There total 11 articles about Benzene, 1,1'-(1,3-butadiyne-1,4-diyl)bis[3-(1,1-dimethylethyl)-5-[4-[3-(1,1-dimeth ylethyl)-5-ethynylphenyl]-1,3-butadiynyl]- 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: 99.0%

C74H90Si2 (388092-72-6) → C56H50 (186772-55-4)

Guidance literature:

With tetrabutyl ammonium fluoride; In tetrahydrofuran; at 20 ℃; for 2.5h;

DOI:10.1016/S0040-4020(01)00779-7

Reference yield: 23.0%

C28H26 (186772-49-6) → C56H50 (186772-55-4) + C112H98 + C84H74

Guidance literature:

With N,N,N,N,-tetramethylethylenediamine; oxygen; copper(l) chloride; In acetone; at 20 ℃; for 4h;

DOI:10.1016/S0040-4020(01)00779-7

Reference yield:

4-tert-Butylaniline (769-92-6) → C56H50 (186772-55-4)

Guidance literature:

Multi-step reaction with 10 steps

1: 92 percent / benzene / 20 °C

2: Br₂ / acetic acid / 21 h / 50 °C

3: 320 g / aq. HCl / ethanol / 3 h / Heating

4: 92 percent / benzyltrimethylammonium dichloroiodate; CaCO₃ / CH₂Cl₂; methanol / 312 h / Heating

5: 69 percent / aq. H₂SO₄; NaNO₂ / benzene; ethanol / 1.5 h / Heating

6: 98 percent / Pd(PPh₃)4; CuI; Et₃N / benzene / 5 h / 40 °C

7: 85 percent / Pd(PPh₃)4; CuI; Et₃N / benzene / 5 h / 60 °C

8: 96 percent / NBS; AgNO₃ / acetone / 2 h / 20 °C

9: 30 percent / Pd₂(dba)3*CHCl₃; LiI/CuI; 1,2,2,6,6-pentamethylpiperidine / hexamethylphosphoric acid triamide; benzene / 7 h / 20 °C

10: 99 percent / TBAF / tetrahydrofuran / 2.5 h / 20 °C

With 1,2,2,6,6-pentamethylpiperidine; hydrogenchloride; tris(dibenzylideneacetone)dipalladium⁽⁰⁾ chloroform complex; N-Bromosuccinimide; copper(l) iodide; tetrakis(triphenylphosphine) palladium⁽⁰⁾; sulfuric acid; tetrabutyl ammonium fluoride; bromine; N,N,N-trimethylbenzenemethanaminium dichloroiodate; silver nitrate; triethylamine; calcium carbonate; lithium iodide; sodium nitrite; In tetrahydrofuran; methanol; N,N,N,N,N,N-hexamethylphosphoric triamide; ethanol; dichloromethane; acetic acid; acetone; benzene;

DOI:10.1016/S0040-4020(01)00779-7

upstream raw materials:

C₇₄H₉₀Si₂

C₂₈H₂₆

4-tert-Butylaniline

2-bromo-4-tert-butylaniline

Downstream raw materials:

C₅₆H₄₈

Refernces

• 1、 Tobe, Yoshito,Utsumi, Naoto,Kawabata, Kazuya,Naemura, Koichiro. "Synthesis and self-association properties of diethynylbenzene macrocycles". . p. 9325 - 9328. Retrieved 2007/10/03.