1,2-Dihydro-3,4,5,6-tetraphenylphthalic anhydride

Base Information

• Chemical Name: 1,2-Dihydro-3,4,5,6-tetraphenylphthalic anhydride
• CAS No.: 6971-41-1
• Molecular Formula: C32H22 O3
• Molecular Weight: 454.525
• European Community (EC) Number: 230-197-0
• NSC Number: 66518
• DSSTox Substance ID: DTXSID50989871
• Nikkaji Number: J266.018K
• Mol file: 6971-41-1.mol

Synonyms:6971-41-1;1,2-Dihydro-3,4,5,6-tetraphenylphthalic anhydride;4,5,6,7-tetraphenyl-3a,7a-dihydro-2-benzofuran-1,3-dione;EINECS 230-197-0;4,5,6,7-Tetraphenylisobenzofuran-1,3(3aH,7aH)-dione;C32H22O3;NSC66518;DTXSID50989871;NSC 66518;NSC-66518;AKOS024429028;C32-H22-O3;3a,7a-Dihydro-4,5,6,7-tetraphenyl-1,3-isobenzofurandione

Chemical Property of 1,2-Dihydro-3,4,5,6-tetraphenylphthalic anhydride

Chemical Property:

• Vapor Pressure: 7.2E-19mmHg at 25°C
• Boiling Point: 689.6°C at 760 mmHg
• Flash Point: 350°C
• PSA: 43.37000
• Density: 1.262g/cm³
• LogP: 6.53780
• XLogP3: 5.7
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 4
• Exact Mass: 454.15689456
• Heavy Atom Count: 35
• Complexity: 799

Purity/Quality:

98%min ^*data from raw suppliers

4,5,6,7-TETRAPHENYL-1,3,3A,7A-TETRAHYDRO-2-BENZOFURAN-1,3-DIONE 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Canonical SMILES: C1=CC=C(C=C1)C2=C(C(=C(C3C2C(=O)OC3=O)C4=CC=CC=C4)C5=CC=CC=C5)C6=CC=CC=C6

Technology Process of 1,2-Dihydro-3,4,5,6-tetraphenylphthalic anhydride

There total 2 articles about 1,2-Dihydro-3,4,5,6-tetraphenylphthalic anhydride 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: 95.0%

maleic anhydride (108-31-6) + 2,3,4,5-tetraphenylcyclopenta-2,4-dienone (479-33-4) → 3,4,5,6-tetraphenyl-1,2-dihydro-o-phthalic anhydride (6971-41-1)

Guidance literature:

In 1,2-dichloro-benzene; for 0.166667h; Heating;

DOI:10.1016/S0040-4020(02)00256-9

Reference yield:

→ 3,4,5,6-tetraphenyl-1,2-dihydro-o-phthalic anhydride (6971-41-1)

Guidance literature:

Tetraphenylcyclopentadienon und Maleinsaeureanhydrid;

DOI:10.1021/jo01282a019

Reference yield:

chloro-trimethyl-silane (75-77-4) + 3,4,5,6-tetraphenyl-1,2-dihydro-o-phthalic anhydride (6971-41-1) → 4,5,6,7-Tetraphenyl-1,3-bis-trimethylsilanyloxy-isobenzofuran (92897-94-4)

Guidance literature:

With triethylamine; zinc(II) chloride; In acetonitrile; at -20 ℃;

DOI:10.1016/S0040-4039(01)81342-3

upstream raw materials:

maleic anhydride

2,3,4,5-tetraphenylcyclopenta-2,4-dienone

Downstream raw materials:

4,5,6,7-Tetraphenyl-1,3-bis-trimethylsilanyloxy-isobenzofuran

1,2,3,5-tetraphenylbenzene

1,2,3,4-tetraphenylbenzene

1,2-diphenyltriphenylene

Refernces