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Pyridine-2-carbaldehyde hydrazone

In summary, the known preparative methods for the synthesis of [l,2,3]triazolo[l,5-a]pyridines prior to 1983 have been extensively reviewed in a number of different reviews <61CHE749,83AHC(34)80, 84CHEC-I(5)847>. These reviews reveal that the most straightforward methods involves an oxidation of the hydrazone of a pyridine-2-carbaldehyde or ketone, treatment of a tosylhydrazone with a base, cyclization of Af-aminopyridinium oxime mesylates, pyrolysis of pyridyldiazoalkanes, and diazo group (tosyl azide as source of the diazo group) transfer to an active methylene group (e.g., 2-methylpyridines) under basic conditions. [Pg.383]

Hi) Complexes with Schiff bases derived from pyridine-2-carbaldehyde and related species and with hydrazones... [Pg.5071]

Table 98 Complexes with SchiS Bases Derived from Pyridine-2-carbaldehyde, Thiosemicarbazide, Dithiocarbazic Acid and with Hydrazones... [Pg.5072]

See other pages where Pyridine-2-carbaldehyde hydrazone is mentioned: [Pg.7213]    [Pg.7213]    [Pg.233]    [Pg.609]    [Pg.198]    [Pg.1224]    [Pg.1229]    [Pg.887]    [Pg.233]    [Pg.887]    [Pg.1224]    [Pg.1229]    [Pg.4678]    [Pg.4683]   


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Carbaldehyde

Carbaldehydes

Carbaldehydes pyridine-2-carbaldehyde

Pyridine-2,6-carbaldehyde

Pyridine-3-carbaldehyd

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