9,9'-BIFLUORENE

Base Information

• Chemical Name: 9,9'-BIFLUORENE
• CAS No.: 1530-12-7
• Molecular Formula: C26H18
• Molecular Weight: 330.429
• Hs Code.: 2902909090
• Mol file: 1530-12-7.mol

Synonyms:9,9'-Bifluorene(6CI,7CI,8CI); 9,9'-Bifluorenyl; 9,9'-Difluorenyl; Bifluorenyl; Bisfluorenyl;NSC 33585

Chemical Property of 9,9'-BIFLUORENE

Chemical Property:

• Melting Point: 244.0 to 248.0 °C
• Refractive Index: 1.8430 (estimate)
• Boiling Point: 459.1°Cat760mmHg
• Flash Point: 228.3°C
• PSA: 0.00000
• Density: 1.222g/cm³
• LogP: 6.61140

Purity/Quality:

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

9,9''-Bifluorenyl ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Uses: 9,9''-Bifluorenyl can be used in microwave flash pyrolysis to form other compounds such as indene, chrysene, benzoanthracene e.t.c.

Technology Process of 9,9'-BIFLUORENE

There total 182 articles about 9,9'-BIFLUORENE 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: 86.0%

9H-fluorene (86-73-7) + 9-diazofluorenone (832-80-4) → 9-fluorenone (486-25-9,952573-42-1) + 9,9'-bifluorenyl (1530-12-7) + di-fluoren-9-ylidene-hydrazine (2071-44-5)

Guidance literature:

With potassium tert-butylate; oxygen; In N,N,N,N,N,N-hexamethylphosphoric triamide; tert-butyl alcohol; at 25 ℃; Mechanism;

Reference yield: 60.0%

9-diazofluorenone (832-80-4) → (Z)-2-Butene (590-18-1) + 9-fluorenone (486-25-9,952573-42-1) + 9,9'-bifluorenyl (1530-12-7) + 2-(9H-Fluoren-9-yl)-2,3-dimethyl-oxirane (112292-66-7)

Guidance literature:

With 2,3-cis-epoxybutane; Further byproducts given; Irradiation;

DOI:10.1016/S0040-4039(01)81006-6

Reference yield: 60.0%

2,3-cis-epoxybutane (925669-95-0) → (Z)-2-Butene (590-18-1) + 9-fluorenone (486-25-9,952573-42-1) + 9,9'-bifluorenyl (1530-12-7) + 2-(9H-Fluoren-9-yl)-2,3-dimethyl-oxirane (112292-66-7)

Guidance literature:

With 9-diazofluorenone; Further byproducts given; Irradiation;

DOI:10.1016/S0040-4039(01)81006-6

upstream raw materials:

n-butyl magnesium bromide

diethyl ether

9-chlorofluorene

9H-fluorene

Downstream raw materials:

tetrabenzo[5.5]fulvalene

9H-fluorene

rubicene

dibenzo[g,p]chrysene

Refernces

• 1、 Weisburger,Grantham. "-". . p. 1160. Retrieved 1956.
• 2、 Minabe,Suzuki. "". . p. 1298,1302. Retrieved 1975.
• 3、 Griller, D.,Hadel, L.,Nazran, A. S.,Platz, M. S.,Wong, P. C.,et al.. "Fluorenylidene: Kinetics and Mechanism". . p. 2227 - 2235. Retrieved 1984.
• 4、 Bethell,Cockerill. "-". . p. 913. Retrieved 1966.
• 5、 Maroney. "-". . p. 2398. Retrieved 1935.
• 6、 Kajigaeshi,S. et al.. "". . p. 3569 - 3572. Retrieved 1979.
• 7、 Sridevi, Venugopal Shanmugham,Leong, Weng Kee. "Catalytic reductive homocoupling of 9-bromofluorene". . p. 6669 - 6670. Retrieved 2007.
• 8、 Bartle,K.D. et al.. "". . p. 911 - 923. Retrieved 1970.
• 9、 Trost,Kinson. "". . p. 1273. Retrieved 1972.
• 10、 Knjazhanski, Sergei Ya,Moreno, Guillermo,Cadenas, Gregorio,Belsky, Vitalii K.,Bulychev, Boris M.. "Preparation of bifluorenes via the synthesis and thermal decomposition of fluorenyltitanium(IV) trichlorides. Molecular and crystal structure of 9,9'-bis(trimethylsilyl)-bi-9,9'-fluorene". . p. 1639 - 1646. Retrieved 1999.