2,2'-DIBROMODIPHENYLACETYLENE

Base Information

• Chemical Name: 2,2'-DIBROMODIPHENYLACETYLENE
• CAS No.: 38399-13-2
• Molecular Formula: C14H8Br2
• Molecular Weight: 336.026
• Hs Code.: 2903999090
• Mol file: 38399-13-2.mol

Synonyms:2,2'-dibromo-1,1'-diphenylacetylene;2,2'-dibromophenyl acetylene;2,2'-dibromodiphenylacetylene;

Chemical Property of 2,2'-DIBROMODIPHENYLACETYLENE

Chemical Property:

• Melting Point: 79.0 to 83.0 °C
• Boiling Point: 402.5°Cat760mmHg
• Flash Point: 230.7°C
• PSA: 0.00000
• Density: 1.74g/cm³
• LogP: 4.61140
• Solubility.: soluble in Tetrahydrofuran

Purity/Quality:

98%,99%, ^*data from raw suppliers

Bis(2-bromophenyl)acetylene ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 2,2'-DIBROMODIPHENYLACETYLENE

There total 18 articles about 2,2'-DIBROMODIPHENYLACETYLENE 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%

1-Bromo-2-iodobenzene (583-55-1) + 2-bromo-1-ethynylbenzene (766-46-1) → 2,2'-dibromotolane (38399-13-2)

Guidance literature:

With copper(l) iodide; tetrakis(triphenylphosphine) palladium⁽⁰⁾; triethylamine; at 20 ℃; for 18h;

DOI:10.1002/chir.22489

Reference yield: 99.0%

→ 2,2'-dibromotolane (38399-13-2)

Guidance literature:

With tris[2-(dimethylamino)ethyl]amine; copper; In tetrahydrofuran; at 60 ℃; for 5h; Schlenk technique; Inert atmosphere;

Reference yield: 94.0%

1-bromo-2-(prop-1-yn-1-yl)benzene (92672-77-0) → 2,2'-dibromotolane (38399-13-2)

Guidance literature:

With [K(OEt₂)][Mo(CPh)(triphenylsilanolate)4]; In toluene; at 20 ℃; Inert atmosphere; Molecular sieve;

DOI:10.1002/chem.201200621

upstream raw materials:

2,α,2',α'-tetrabromo-bibenzyl

1-Bromo-2-iodobenzene

2-bromo-1-ethynylbenzene

acetylene

Downstream raw materials:

2,2'-ethynylenedibenzeneboronic acid

o,o’-diiodo-diphenylacetylene

2,2'-(ethyne-1,2-diyl)dibenzoic acid

2,2'-bis-(triisopropylsilyl)ethynyltolan

Refernces

• 1、 Sashida, Haruki,Yasuike, Syuji. "A Simple One-Pot Synthesis of [1]Benzotelluro[3,2-b][1]-benzotellurophenes and its Selenium and Sulfur Analogues from 2,2′-Dibromodiphenylacetylene [1]". . p. 725 - 726. Retrieved 1998.
• 2、 Albrecht, Florian,Castro-Esteban, Jesús,Fatayer, Shadi,Gross, Leo,Pérez, Dolores,Pe?a, Diego. "An on-surface Diels–Alder reaction". supporting information. p. 26346 - 26350. Retrieved 2021/11/13.
• 3、 Lin, Jinqiang,Zou, Chao,Zhang, Xiaobao,Gao, Qin,Suo, Sa,Zhuo, Qihang,Chang, Xiaoyong,Xie, Mo,Lu, Wei. "Highly phosphorescent organopalladium(ii) complexes with metal-metal-to-ligand charge-transfer excited states in fluid solutions". supporting information. p. 10417 - 10421. Retrieved 2019/07/22.