A New Convergent Synthesis of 4,4′-Bispyridyl-5,5′-Disubstituted-2,2-Bisoxazoles and -Bisthiazoles

Abstract

A convergent strategy for the synthesis of 4,4′-bispyridyl-5,5′-disubstituted-2,2′-bisoxazoles and -bisthiazoles from di­amides has been achieved.

Key words

heterocycles - amides - oxazoles - thiazoles - fluorine

References

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13

See experimental for typical procedure for the synthesis of anhydrobases 5.

14

See experimental for representative example of analytical data of compounds 5.

17

See experimental for preparation of dithioamides 6, and representative example of analytical data.