3,4-diaminopyridine derivatives for use as catalysts

Details 3,4-diaminopyridine derivatives for use as catalysts 3,4-diaminopyridine derivatives for use as catalysts

2011-08-09

2011-08-09

Wilson, James O. (Department: 1624)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Heterocyclic carbon compounds containing a hetero ring...

C544S353000

Reexamination Certificate

active

07994169

ABSTRACT:
The present invention relates to 3,4-diaminopyridine derivatives of formula (I)whereinR1and R2are, independently of each other, electron donors, wherein R2 is optionally H; andR3, R4, R5, and R6are, independently of each other, H, optionally substituted straight-chain or branched alkyl, alkenyl, alkynyl, alkoxyl, or aryl, wherein R3and/or R4together with R5and/or R6, optionally define a ring;processes for their preparation, and their use as catalysts.

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