An Improved Synthesis of p-Bis(Phenylgloyoxaloyl)-Benzene
Abstract
Stanley E. ;AMMRC-TR-73-5DA-1-W-062113-A-661(*ketones, synthesis(chemistry)), nitrogen heterocyclic compounds, alkynes, heat resistant plasticsphenylquinoxaline polymers, *polyquinoxalines, quinoxalines, glyoxal derivatives, succinimide/n-bromo, copper(i) compounds, diketone compoundsAn improved synthesis of p-bis(phenylglyoxaloyl)benzene (BPG), one of the co- monomers for the high temperature resistant polyphenylquinoxaline system, has been achieved. The method consists of three simple, high yield steps leading to a 70% overall yield of BPG. The starting material, phenylacetylene, is quantitatively converted to its cuprous salt which is then coupled with p- diiodobenzene to give p-bis(phenylethynyl)benzene in 73% yield. The diacetylene is oxidized to BPG in 96% yield using N-bromosuccinimide in dimethylsulfoxide.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1973
- Accession Number
- AD0757601
Entities
People
- Stanley E. Wentworth
Organizations
- United States Army Research Laboratory