2,6-bis(aminophenoxy)pyridine and method of preparing the same

Details 2,6-bis(aminophenoxy)pyridine and method of preparing the same 2,6-bis(aminophenoxy)pyridine and method of preparing the same

1987-03-11

1988-09-06

Rotman, Alan L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546300, C07D21364

Patent

active

047694637

ABSTRACT:
Noval diamines, 2,6-bis(3-aminophenoxy)pyridine and 2,6-bis-(4-aminophenoxy)pyridine, are provided and the method of their preparation is disclosed. These diamines are useful as raw materials for polyimide.
These diamines can be prepared by the reaction of 2,6-dichloropyridine or 2,6-dibromopyridine with 3-aminophenol or 4-aminophenol in aprotic polar solvents in the presence of bases.
Besides, 2,6-bis(3-aminophenoxy)pyridine can also be prepared by the reaction of 2,6-dicholorpyridine or 2,6-dibromopyridine with 3-nitrophenol, followed by reducing resultant 2,6-bis(3-nitrophenoxy)pyridine.

REFERENCES:
patent: 4222962 (1980-09-01), Pellegrini, Jr.
Chem. Abstracts, vol. 107(21), Abst. No. 198, 105g, Nov. 23, 1987.
Helv. Chim. Acta, 51, 971 (1968).
Great Organic Chemistry, Series 16, p. 20, by Asakura Bookstore.
Oxydation and Reduction, [II], Experimental Chemistry Court, vol. 15, by Maruzen Comp.

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