发明授权
US4150229A 2,5-Di-(.omega.-aminoalkyl-1')-pyrazines 失效
2,5-二 - ({107-氨基烷基-1 {40] - 吡嗪

2,5-Di-(.omega.-aminoalkyl-1')-pyrazines
摘要:
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.
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