2,7-Dibromo-9,9'-spirobifluorene

Base Information

• Chemical Name: 2,7-Dibromo-9,9'-spirobifluorene
• CAS No.: 171408-84-7
• Molecular Formula: C25H14Br2
• Molecular Weight: 474.194
• Hs Code.: 2903999090
• European Community (EC) Number: 805-788-7
• DSSTox Substance ID: DTXSID00573926
• Nikkaji Number: J1.706.393F
• Wikidata: Q72465027
• Mol file: 171408-84-7.mol

Synonyms:171408-84-7;2,7-DIBROMO-9,9'-SPIROBIFLUORENE;2,7-dibromo-9,9'-spiro-bifluorene;2,7-dibromo-9,9'-spirobi[fluorene];2,7-Dibromo-9,9'-spirobi[9H-fluorene];2',7'-dibromo-9,9'-spirobi[fluorene];MFCD08704218;2,7-Dibromo-9,9-Spiro-Bifluorene;9,9'-Spirobi[9H-fluorene], 2,7-dibromo-;SCHEMBL996751;DTXSID00573926;UPJLZKCEPFAKSH-UHFFFAOYSA-N;BCP14154;2,7-dibromo-9,9'-spirobi fluorene;CX1130;AKOS015889726;2,7-Dibromo-9,9/'-spiro-bifluorene;AC-4887;CS-W011534;DS-0974;SB66585;SY036340;2,7-Dibromo-9,9'-spirobifluorene, 95%;AM20030147;D3781;A21230;Q-101176;2,7-Dibromo-9,9 inverted exclamation mark -spirobifluorene;ethyl 4-(1-(3-fluorobenzyl)-1H-indazol-5-ylamino)-5-methylpyrrolo[1,2-f][1,2,4]triazine-6-carboxylat

Chemical Property of 2,7-Dibromo-9,9'-spirobifluorene

Chemical Property:

• Appearance/Colour: off-white crystal
• Melting Point: 334-336°C
• Boiling Point: 557.435 °C at 760 mmHg
• Flash Point: 335.129 °C
• PSA: 0.00000
• Density: 1.74 g/cm³
• LogP: 7.55510
• Storage Temp.: Keep in dark place,Inert atmosphere,Room temperature
• XLogP3: 7.8
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 473.94418
• Heavy Atom Count: 27
• Complexity: 523

Purity/Quality:

98% ^*data from raw suppliers

2,7-Dibromo-9,9''-spirobifluorene ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1=CC=C2C(=C1)C3=CC=CC=C3C24C5=C(C=CC(=C5)Br)C6=C4C=C(C=C6)Br
• Uses: 2,7-Dibromo-9,9′-spirobifluorene can be used in the preparation of 9,9′-spirobifluorene-based small molecules, which can further be utilized as host materials in organic light emitting diodes (OLEDs).

Technology Process of 2,7-Dibromo-9,9'-spirobifluorene

There total 19 articles about 2,7-Dibromo-9,9'-spirobifluorene 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: 89.0%

9-((1,1'-biphenyl)-2-yl)-2,7-dibromo-9H-fluoren-9-ol (171408-85-8) → 2,7-dibromo-9,9'-spirobi[fluorene] (171408-84-7)

Guidance literature:

hydrogenchloride; In water; acetic acid; for 12h; Heating / reflux;

Reference yield: 84.0%

2,7-dichloro-9,9'-spirobifluorene → 2,7-dibromo-9,9'-spirobi[fluorene] (171408-84-7)

Guidance literature:

With nickel dichloride; In N,N-dimethyl-formamide; at 170 ℃; Inert atmosphere; Schlenk technique;

DOI:10.1021/jacs.1c05853

Reference yield: 78.0%

→ 2,7-dibromo-9,9'-spirobi[fluorene] (171408-84-7)

Guidance literature:

With n-butyllithium; In tetrahydrofuran; n-heptane; at -78 ℃; for 1h;

In tetrahydrofuran; n-heptane; at -78 - 20 ℃;

upstream raw materials:

9-((1,1'-biphenyl)-2-yl)-2,7-dibromo-9H-fluoren-9-ol

2,7-dibromofluorene-9-one

2-biphenylmagnesium bromide

2-Bromobiphenyl

Downstream raw materials:

2,7-bis(4'-cyanophenyl)-9,9'-spirobifluorene

spiro(2,7-bis[4-methoxyphenyl]fluorene-9,9'-fluorene)

C₃₉H₂₀F₈

2,7-di(phenanthren-9-yl)-9,9'-spirobifluorene

Refernces

• 1、 Guo, Sheng,Swager, Timothy M.. "Versatile Porous Poly(arylene ether)s via Pd-Catalyzed C-O Polycondensation". . p. 11828 - 11835. Retrieved 2021.
• 2、 -. "9, 9' - Spirobifluorene preparation of". Paragraph 0050. . Retrieved 2018/04/20.