9-FLUORENYLIDENE TRIPHENYLPHOSPHORANE

Base Information

• Chemical Name: 9-FLUORENYLIDENE TRIPHENYLPHOSPHORANE
• CAS No.: 4756-25-6
• Molecular Formula: C31H23 P
• Molecular Weight: 426.497
• Mol file: 4756-25-6.mol

Synonyms:Phosphorane,9H-fluoren-9-ylidenetriphenyl- (9CI); Phosphorane, fluoren-9-ylidenetriphenyl-(6CI,7CI,8CI); Fluoren-9-ylidenetriphenylphosphorane; NSC 625122; NSC 67715

Chemical Property of 9-FLUORENYLIDENE TRIPHENYLPHOSPHORANE

Chemical Property:

• Melting Point: 278 °C(Solv: benzene (71-43-2); ligroine (8032-32-4))
• Boiling Point: 631.9°Cat760mmHg
• Flash Point: 336°C
• PSA: 9.81000
• Density: 1.23g/cm³
• LogP: 6.22990

Purity/Quality:

99%min ^*data from raw suppliers

9-FLUORENYLIDENETRIPHENYLPHOSPHORANE Aldrich ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 9-FLUORENYLIDENE TRIPHENYLPHOSPHORANE

There total 7 articles about 9-FLUORENYLIDENE TRIPHENYLPHOSPHORANE 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: 87.0%

(9H-fluoren-9-yl)triphenylphosphonium bromide (7253-07-8) → (9H-fluoren-9-ylidene)triphenylphosphorane (4756-25-6)

Guidance literature:

With ammonium hydroxide; In ethanol; nitrobenzene; for 0.5h;

DOI:10.1039/c7nj01136a

Reference yield:

9H-fluoren-9-yl bromide (1940-57-4) → (9H-fluoren-9-ylidene)triphenylphosphorane (4756-25-6)

Guidance literature:

Multi-step reaction with 2 steps

2: aq. NH₃

With ammonium hydroxide;

DOI:10.1021/ja00961a019

Reference yield:

→ (9H-fluoren-9-ylidene)triphenylphosphorane (4756-25-6)

Guidance literature:

With ammonium hydroxide;

DOI:10.1021/ja01195a605

upstream raw materials:

(9H-fluoren-9-yl)triphenylphosphonium bromide

fluorenone imine

triphenylphosphine

9H-fluoren-9-yl bromide

Downstream raw materials:

9-fluorenethione S-p-toluenesulfomimide

C₅₄H₃₆

2-(2-(9H-fluoren-9-ylidene)ethyl)phenol

9-(5-chloro-2-nitrobenzylidene)-9H-fluorene

Refernces

• 1、 Hintermann, Lukas,Ackerstaff, Jens,Boeck, Florian. "Inner workings of a cinchona alkaloid catalyzed oxa-Michael cyclization: Evidence for a concerted hydrogen-bond-network mechanism". supporting information. p. 2311 - 2321. Retrieved 2013/04/10.