3049-19-2

Usage

Uses

Used in Polymer Industry:
Phosphonic acid, butyl-, diphenyl ester is used as a flame retardant for improving the fire-resistant properties of various polymer products. Its high thermal stability and low volatility make it a suitable choice for applications requiring enhanced safety against fire hazards.
Used in Plastics and Rubber Industry:
In the plastics and rubber industry, Phosphonic acid, butyl-, diphenyl ester is used as a plasticizer and additive. It improves the flexibility and durability of PVC, rubber, and other plastic materials, while also enhancing their flame resistance.
It is crucial to handle Phosphonic acid, butyl-, diphenyl ester with care due to its potential health hazards and environmental risks if not used and disposed of properly. Proper safety measures and disposal methods should be adhered to when working with this chemical compound.

Upstream product

• 17383-46-9 butyl-diphenoxy-phosphine 
• 109-65-9 1-bromo-butane 
• 4712-55-4 diphenyl hydrogen phosphite 
• 542-69-8 1-iodo-butane 

Relevant academic research and scientific papers

DBU-promoted alkylation of alkyl phosphinates and H-phosphonates

The alkylation of alkyl phosphinates and some H-phosphonate diesters is promoted by the base DBU. Only more reactive alkyl halides react in preparatively useful yields. However, the method provides easy access to important H-phosphinate building blocks, without the need for a protecting group strategy or metal catalysts. The reaction is conveniently conducted at, or below, room temperature. The preparation of methyl-H-phosphinate esters is particularly interesting as it avoids the heretofore more common use of methyldichlorophosphine MePCl2.

Mild and efficient Cs2CO3-promoted synthesis of phosphonates

A mild and convenient synthesis for phosphonates using cesium carbonate (Cs2CO3), tetrabutylammonium iodide (TBAI) and DMF was developed at room temperature. Numerous dialkyl phosphites were screened using a diverse array of alkyl halides and these reaction conditions were found to be highly efficient producing various phosphonates exclusively in moderate to high yields.