FIELD: chemistry.
SUBSTANCE: production method of 2 ':6', 2":6", 2"'-tetrapyridine 
, including dimerisation characterised that bipyridine N-oxide is dimerised with 0.5 eq. tert-buthyllithium and thereafter reduced with triethylphosphite.
EFFECT: development of simple and economical production method of 2':6',2":6",2"'-tetrapyridine.
1 cl
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