A. Balaban, G. Mihai, C. D. Nenitzescu
1962
Citations
0
Influential Citations
28
Citations
Journal
Tetrahedron
Abstract
Abstract Sodium borohydride converts 2,4,6-trialkylpyrylium salts (I) into a mixture of dienones (III) and lower-boiling products, which are probably 4H-pyrans (IV). The latter products yield derivatives of 1,5-diones in acid medium, and are believed to be formed by addition of the hydride ion to the γ-position of the pyrylium salt, while the former dienones arise by addition to the α-position.