THE SYNTHESIS AND EVALUATION OF NEW BASE STOCK FLUIDS FOR GAS TURBINE APPLICATION
Abstract
The synthesis and evaluation of new pyrazine derivatives for high temperature stable fluid applications are reported. A variety of candidate products which were unsymmetrical 2,3-disubstituted- and 2,3,6-trisubstitutedpyrazines were prepared from the versatile starting compounds 2-chloro-3-methylpyrazine and 2-chloro-3,6dimethylpyrazine. The substituents placed at the 2-position by nucleophilic displacement of the ce atom were various phenoxy, alkoxy, anilino and alkylamino radicals. Metalati n of the methyl sites afforded the introduction of a number of other types of groups by arylation, aralkylation, alkylation, acylation and silylation reactions. A number of 2,6-disubstitutedpyrazines were prepared via oxidative demethylation of the corresponding intermediate 2,6-disubstituted-3-methylpyrazines. Some simple alkyl substituted pyrazines were also synthesized from the readily available starting compounds methylpyrazine, 2,5- and 2,6-dimethylpyrazines, and tetramethylpyrazine. The screening of pyrazine compounds for thermal and oxidative stability continued. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1962
- Accession Number
- AD0274768
Entities
People
- J.d. Behun
- Peter T. Kan