Accession Number:

AD0274768

Title:

THE SYNTHESIS AND EVALUATION OF NEW BASE STOCK FLUIDS FOR GAS TURBINE APPLICATION

Descriptive Note:

Corporate Author:

WYANDOTTE CHEMICALS CORP MI

Personal Author(s):

Report Date:

1962-02-01

Pagination or Media Count:

1.0

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

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE