Pyridines Baeyer synthesis

BAER FISCHER Ammo sugar synthesis 10 BAEYER Oxindolesynthesis It BAEYER Oiarylmethane synthesis 11 BAEYER Pyridine synthesis 12 BAEYER - DREWSON Indoxyt synthesis 12 BAEYER VILLIGER Ketone oxidation 13 BAEYER - VILLIGER Tntylation 13 BAKER - VENKATARAMAN Flavone synthesis t4... 

Pyrylium salts are prone to nucleophilic attack. Reaction of pyiylium salts 339 with ammonia or anunonium salts undergo ring-opening/ring-closing reaction sequences to afford the corresponding pyridine derivatives 340. This reaction was also called the Baeyer pyridine synthesis. ... 

P-Carbolines are a class of indole alkaloids that are structurally similar to tryptophan, which has been shown to be useful for a variety of neuroscience applications The Baeyer pyridine synthesis was applied for the preparation of the P-carboline derivative ambocart) (346) ... 

Other references related to Baeyer pyridine synthesis are cited in the literature. ... 

The reaction of pyrylium salts 2 with ammonia or ammonium salts to produce pyridine derivatives 3 is referred to as the Baeyer pyridine synthesis. There are several methods available for the preparation of pyrylium salts, the alkylation of pyran-4-one derivatives 1 with dimethylsulfate to generate the prerequisite pyrylium salts was reported by Baeyer in his 1910 paper. 

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