Polycondensation of 2-methyl-6-pyridinealdehyde

Chigir, A. N.; Novikova, V.F.; Kalikhman, I. D.; Chumakov, Yu. I.; Cherkashin, Μ. I.; Берлин, А. А.

doi:10.1016/0032-3950(69)90497-3

Cited by 2 publications

(1 citation statement)

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“…It is worthy to mention that this methodology could be a good alternative to the existing methods in a literature for the 1,2,4‐triazine synthesis. For example, the 1,2,4‐triazine 4 d was isolated in 35% yield, starting from readily available 2‐cyano‐6‐methylpyridine (derived in two steps from 2‐picoline), while in the common method for the preparation of 4 d the heterocyclization reaction of both the hardly synthetically available and expensive 6‐methylpyridine‐2‐carbaldehyde is used. However, for the 1,2,4‐triazine substituted with 3‐quinolone residue obtained in 30% yield; this method clearly wins, as it is based on the easily accessible quinoline‐2‐carbaldehyde.…”

Section: Resultsmentioning

confidence: 99%

Pot, Atom, Step Economic (PASE) Approach towards (Aza)‐2,2′‐Bipyridines: Synthesis and Photophysical Studies

et al. 2018

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An efficient approach towards α‐unsubstituted‐2,2′‐bipyridines, their aza‐analogs and 3,6‐disubstituted‐1,2,4‐triazine precursors is reported via pot, atom, step economic (PASE) process starting from isonitrosoacetophenone hydrazone and readily available hetero‐arylnitriles. The crystal structures of three key compounds were confirmed by means of X‐ray diffraction analysis. In addition the photophysical properties of the new (aza)‐2,2′‐pyridines were studied.

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Section: Resultsmentioning

confidence: 99%