tetrakis(2,2,6,6-tetramethyl-1-oxyl-4-piperidyloxy)pyromellitate

Base Information

• Chemical Name: tetrakis(2,2,6,6-tetramethyl-1-oxyl-4-piperidyloxy)pyromellitate
• CAS No.: 4210-46-2
• Molecular Formula: C₄₆H₇₀N₄O₁₂
• Molecular Weight: 871.081
• Mol file: 4210-46-2.mol

Synonyms:tetrakis(2,2,6,6-tetramethyl-1-oxyl-4-piperidyloxy)pyromellitate

Chemical Property of tetrakis(2,2,6,6-tetramethyl-1-oxyl-4-piperidyloxy)pyromellitate

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of tetrakis(2,2,6,6-tetramethyl-1-oxyl-4-piperidyloxy)pyromellitate

There total 4 articles about tetrakis(2,2,6,6-tetramethyl-1-oxyl-4-piperidyloxy)pyromellitate 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: 78.0%

TEMPOL (45985-24-8,2226-96-2) + benzene-1,2,4,5-tetracarbonyl chloride (7710-20-5) → tetrakis(2,2,6,6-tetramethyl-1-oxyl-4-piperidyloxy)pyromellitate (4210-46-2)

Guidance literature:

With triethylamine; In toluene; at 20 ℃; for 48h;

Reference yield: 56.0%

TEMPOL (45985-24-8,2226-96-2) + tetramethyl 1,2,4,5-benzenetetracarboxylate (635-10-9) → tetrakis(2,2,6,6-tetramethyl-1-oxyl-4-piperidyloxy)pyromellitate (4210-46-2)

Guidance literature:

With sodium ethanolate; In toluene; for 2.5h; Heating;

DOI:10.1007/BF01094644

Reference yield:

1,2,4,5-benzenetetracarboxylic acid (89-05-4) → tetrakis(2,2,6,6-tetramethyl-1-oxyl-4-piperidyloxy)pyromellitate (4210-46-2)

Guidance literature:

Multi-step reaction with 2 steps

1: 67 percent / SOCl₂; Sb₂O₅; DMF / 10 h / Heating

2: 78 percent / Et₃N / toluene / 48 h / 20 °C

With thionyl chloride; antimony pentoxide; triethylamine; N,N-dimethyl-formamide; In toluene; 1: Substitution / 2: Esterification;

upstream raw materials:

TEMPOL

tetramethyl 1,2,4,5-benzenetetracarboxylate

benzene-1,2,4,5-tetracarbonyl chloride

1,2,4,5-benzenetetracarboxylic acid

Refernces

• 1、 Griesar,Soto-Bustamante,Haase. "Synthesis and magnetic properties of some crystalline nitroxide radicals". . p. 567 - 575. Retrieved 2007/10/03.