1,9-Dimethylfluorene

Base Information

• Chemical Name: 1,9-Dimethylfluorene
• CAS No.: 17057-98-6
• Molecular Formula: C₁₅H₁₄
• Molecular Weight: 194.276
• Hs Code.: 2902909090
• UNII: 8WSV52809F
• DSSTox Substance ID: DTXSID30904784
• Nikkaji Number: J69.715J
• Wikidata: Q27271132
• Mol file: 17057-98-6.mol

Synonyms:1,9-dimethylfluorene

Chemical Property of 1,9-Dimethylfluorene

Chemical Property:

• Vapor Pressure: 0.000628mmHg at 25°C
• Melting Point: 71-72 °C
• Refractive Index: 1.6470 (estimate)
• Boiling Point: 319.6°Cat760mmHg
• Flash Point: 153.2°C
• PSA: 0.00000
• Density: 1.052g/cm³
• LogP: 4.12720
• XLogP3: 4.2
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 194.109550447
• Heavy Atom Count: 15
• Complexity: 232

Purity/Quality:

99% ^*data from raw suppliers

1,9-DIMETHYLFLUORENE 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC1C2=CC=CC=C2C3=CC=CC(=C13)C

Technology Process of 1,9-Dimethylfluorene

There total 4 articles about 1,9-Dimethylfluorene 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:

1-methylfluoren-9-one (5501-37-1) → 1,9-dimethyl-9H-fluorene (17057-98-6)

Guidance literature:

Multi-step reaction with 2 steps

1: diethyl ether

2: H₂ / Pd-C

With hydrogen; palladium on activated charcoal; In diethyl ether;

DOI:10.1021/ja00877a022

Reference yield:

C22H22N2O2S → 1,9-dimethyl-9H-fluorene (17057-98-6) + 3,9-dimethyl-9H-fluorene (96563-07-4)

Guidance literature:

With sodium hydride; In toluene; at 110 ℃; for 15h; Overall yield = 99 %; Inert atmosphere;

DOI:10.1002/anie.201409982

Reference yield:

1-(3′-methyl-[1,1′-biphenyl]-2-yl)ethanone (893739-26-9) → 1,9-dimethyl-9H-fluorene (17057-98-6) + 3,9-dimethyl-9H-fluorene (96563-07-4)

Guidance literature:

Multi-step reaction with 2 steps

1: ethanol / 110 °C / Inert atmosphere

2: sodium hydride / toluene / 15 h / 110 °C / Inert atmosphere

With sodium hydride; In ethanol; toluene;

DOI:10.1002/anie.201409982

upstream raw materials:

1-methylfluoren-9-one

1-(3′-methyl-[1,1′-biphenyl]-2-yl)ethanone

Refernces