981-40-8

Usage

Uses

Used in Fire Retardants:
1-diphenoxyphosphoryloxy-4-tert-butyl-benzene is used as a fire retardant additive for enhancing the flame resistance of materials. Its chemical composition allows it to form a protective layer that slows down the spread of flames and reduces the heat transfer, thereby improving the safety of the material.
Used in Plasticizers:
In the plastics industry, 1-diphenoxyphosphoryloxy-4-tert-butyl-benzene is used as a plasticizer to increase the flexibility, workability, and durability of plastic materials. Its incorporation into plastics helps to prevent brittleness and cracking, making the final product more versatile and long-lasting.
Used in Oils:
1-diphenoxyphosphoryloxy-4-tert-butyl-benzene is also utilized as an additive in oils to improve their performance characteristics. It can enhance the lubricating properties of oils, reduce friction, and provide better heat dissipation, which is particularly beneficial in industrial applications where machinery operates under high temperatures and loads.

Purification Methods

Purify it by vacuum distillation, and percolation through an alumina column, followed by passage through a packed column maintained at 150o to remove residual traces of volatile materials in a counter-current stream of N2 at reduced pressure [Dobry & Keller J Phys Chem 61 1448 1957].

Upstream product

• 98-54-4 para-tert-butylphenol 
• 2524-64-3 chlorophosphoric acid diphenyl ester 
• 108-95-2 phenol 
• 18351-36-5 4-tert-Butylphenoxy dichlorophosphate 
• 115-87-7 bis(p-tert-butylphenyl) phenyl phosphate 
• 115-86-6 phosphoric acid triphenyl ester 

Downstream Products

• 115-86-6 phosphoric acid triphenyl ester 
• 115-87-7 bis(p-tert-butylphenyl) phenyl phosphate 
• 78-33-1 tri-p-tert-butylphenol phosphate ester 

Relevant academic research and scientific papers

Tert-butyl phenyl phosphate as well as preparation method and application thereof

The invention discloses tert-butyl phenyl phosphate as well as a preparation method and application thereof. The method comprises the following steps: stirring and heating tert-butylphenol and an ionic liquid catalyst, slowly dropwise adding phosphorus oxychloride, heating and preserving heat after dropwise adding, then adding phenol for heating reaction, adding an organic solvent into the reaction liquid after the reaction is finished, then washing and carrying out phase separation; and removing the organic solvent through reduced pressure distillation to obtain a target product. According to the preparation method, the ionic liquid is used as the catalyst, compared with traditional catalysts such as Lewis acid and solid acid, the target product with higher purity can be catalytically synthesized, the process is simple, and the requirement for industrial production is met.

Preparation of Flame-Resistant Liquids Based on Mixed Tri(phenyl, p-tert-butylphenyl) Phosphates by Transesterification of Triphenyl Phosphate with p-tert-Butylphenol

Abstract: The possibility of controlling the composition of a mixture of triphenyl phosphate, p-tert-butylphenyl diphenyl phosphate, di(p-tert-butylphenyl)phenyl phosphate, and tri(p-tert-butylphenyl) phosphate, formed by transesterification of triphenyl phosphate with p-tert-butylphenol, was demonstrated. The amount of p-tert-butylphenol necessary for transesterification of triphenyl phosphate to yield a mixture of phosphates of required composition was determined. If necessary, the composition of the phosphates can be adjusted by selective distillation of triphenyl phosphate in a vacuum.

Metal-free synthesis of biarenes via photoextrusion in di(tri)aryl phosphates

A metal-free route for the synthesis of biarenes has been developed. The approach is based on the photoextrusion of a phosphate moiety occurring upon irradiation of biaryl- A nd triaryl phosphates. The reaction involves an exciplex as the intermediate and it is especially suitable for the preparation of electron-rich biarenes.

PROCESS FOR THE PREPARATION OF A TRIARYL PHOSPHATE ESTER COMPOSITION

The invention relates to a process for the preparation of a triaryl phosphate ester composition comprising a. reacting a phosphorous oxyhalide with a (C1-C15-alkyl)phenol to obtain a first product; b. reacting the first product with phenol to obtain a triaryl phosphate ester composition; wherein in step a., for every mol of phosphorous oxyhalide 1.3 to 1.6 mols of (C1-C15-alkyl)phenol are used. The invention also relates to a triaryl phosphate ester composition obtainable according to the process of the invention.