2,7-Distyrylnaphthalene

Base Information

• Chemical Name: 2,7-Distyrylnaphthalene
• CAS No.: 32057-88-8
• Molecular Formula: C26H20
• Molecular Weight: 332.445
• Hs Code.: 2902909090
• NSC Number: 288503
• Mol file: 32057-88-8.mol

Synonyms:2,7-Distyrylnaphthalene;32057-88-8;2,7-bis[(E)-2-phenylethenyl]naphthalene;2,7-di((E)-styryl)naphthalene;2,7-Bis(2-phenylethen-1-yl)naphthalene;NSC288503;2,7-Distyrylnaphthalene(cis+trans);MFCD00671513;AKOS004908908;NSC-288503;CS-0379169;T70767

Chemical Property of 2,7-Distyrylnaphthalene

Chemical Property:

• Vapor Pressure: 2.7E-10mmHg at 25°C
• Boiling Point: 517.4°Cat760mmHg
• Flash Point: 264.3°C
• PSA: 0.00000
• Density: 1.146g/cm³
• LogP: 7.18060
• XLogP3: 7.7
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 4
• Exact Mass: 332.156500638
• Heavy Atom Count: 26
• Complexity: 418

Purity/Quality:

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

2,7-Distyrylnaphthalene (cis- and trans- mixture) >97.0%(HPLC) ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1=CC=C(C=C1)C=CC2=CC3=C(C=C2)C=CC(=C3)C=CC4=CC=CC=C4
• Isomeric SMILES: C1=CC=C(C=C1)/C=C/C2=CC3=C(C=C2)C=CC(=C3)/C=C/C4=CC=CC=C4
• Uses: 2,?7-?bis(2-?Phenylethenyl)?-?naphthalene is an intermediate in the synthesis of Hexahelicene (H296850), which can be used in asymmetric polymerization of triphenylmethyl methacrylate by C2-chiral catalysts.

Technology Process of 2,7-Distyrylnaphthalene

There total 2 articles about 2,7-Distyrylnaphthalene 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: 65.0%

styrene (100-42-5,25038-60-2,25247-68-1,28213-80-1,28325-75-9,79637-11-9,9003-53-6) + 2,7-dibromonaphthalene (58556-75-5) → 2,7-distyrylnaphthalene (32057-88-8)

Guidance literature:

With 1,3-bis-(diphenylphosphino)propane; palladium diacetate; In N,N-dimethyl acetamide; at 20 ℃; Inert atmosphere;

styrene; 2,7-dibromonaphthalene; With tetrabutylammomium bromide; potassium carbonate; In N,N-dimethyl acetamide; at 100 - 140 ℃; Inert atmosphere;

DOI:10.3998/ark.5550190.0012.902

Reference yield:

→ 2,7-distyrylnaphthalene (32057-88-8)

Guidance literature:

2,7-Dimethyl-naphthalin, N-Benzyliden-anilin, Kalium-tert.-butylat (DMF);

DOI:10.1002/hlca.19710540140

Reference yield: 75.0%

2,7-distyrylnaphthalene (32057-88-8) → [6]helicene (187-83-7,17486-32-7,19253-33-9)

Guidance literature:

With iodine; In tetrahydrofuran; toluene; for 22h; Irradiation;

DOI:10.3998/ark.5550190.0012.902

upstream raw materials:

styrene

2,7-dibromonaphthalene

Downstream raw materials:

[6]helicene