Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
Patent
1977-12-27
1979-04-17
Tovar, Jose
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitrogen attached directly or indirectly to the purine ring...
C07D24112
Patent
active
041502299
ABSTRACT:
2,5-di-(.omega.-aminoalkyl-1')-pyrazines are obtained by catalytic hydrogenation of nitro compounds of the formula ##STR1## They are suitable as hardeners for epoxides or for the manufacture of polyamides.
Rajappa Srinivasachari
Zondler Helmut
Cavalieri Vincent J.
Ciba-Geigy Corporation
DiPrima Joseph F.
Tovar Jose
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