4,4'-diphenyloxadimaleamic acid

Base Information

• Chemical Name: 4,4'-diphenyloxadimaleamic acid
• CAS No.: 50793-94-7
• Molecular Formula: C₂₀H₁₆N₂O₇
• Molecular Weight: 396.356
• Mol file: 50793-94-7.mol

Synonyms:

Chemical Property of 4,4'-diphenyloxadimaleamic acid

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 4,4'-diphenyloxadimaleamic acid

There total 1 articles about 4,4'-diphenyloxadimaleamic acid 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:

maleic anhydride (108-31-6) + 4,4'-oxydiphenylene diamine (101-80-4,121509-79-3) → 4,4'-diphenyloxadimaleamic acid (50793-94-7)

Guidance literature:

In acetone; at 20 ℃; for 0.5h;

Reference yield:

4,4'-diphenyloxadimaleamic acid (50793-94-7) → 1,1'-(oxybis(4,1-phenylene))bis(1H-pyrrole-2,5-dione) (13132-94-0)

Guidance literature:

With sodium acetate; acetic anhydride; for 3h; Yield given; Heating;

Reference yield:

4,4'-diphenyloxadimaleamic acid (50793-94-7) → Bis[4-(5-benzoyl-1,3-dioxo-1,2,3,3a,4,5,10,10a-octahydropyrrolo[3,4-b]carbazol-2-yl)phenyl]ether

Guidance literature:

Multi-step reaction with 2 steps

1: Ac₂O; Co(OAc)2*4H₂O / 55 °C

2: 65 percent / NaI / dimethylformamide / 1 h / 65 °C

With cobalt(II) acetate; acetic anhydride; sodium iodide; In N,N-dimethyl-formamide; 2: Diels-Alder reaction;

DOI:10.1039/b006899n

upstream raw materials:

maleic anhydride

4,4'-oxydiphenylene diamine

Downstream raw materials:

1,1'-(oxybis(4,1-phenylene))bis(1H-pyrrole-2,5-dione)

Refernces

• 1、 Salakhov,Umaeva,Alikhanova. "Synthesis of stereospecific hinged ladder polyimides by Diels-Alder reaction". experimental part. p. 323 - 327. Retrieved 2009/06/06.