Tetrahedron

Cycloaromatization ofα-oxoketene dithioacetals with lithioacetonitrile and lithiopropionitrile: a facile route to substituted and annelated pyridines

H Ila, H Junjappa

Index: Gupta, Arun K.; Ila, Hiriyakkanavar; Junjappa, Hiriyakkanavar Tetrahedron, 1990 , vol. 46, # 7 p. 2561 - 2572

Full Text: HTML

Citation Number: 1

Abstract

The enolacetals 1 _ obtained by 1, 2-addition of lithioacetonitrile or lithioprop-ionitrile to α- Oxoketene dithioacetals 0 undergo intramolecular Ritter reaction accompanied with 1, 3- MeS shift in the presence of phosphoric acid to afford a variety of substituted and annelated

~84%

~69%

Pyridines. IV. A study of the Chichibabin synthesis

[Frank; Seven Journal of the American Chemical Society, 1949 , vol. 71, p. 2629,2633]

Pyridines. VII. Conversion of 2-Cyclohexenones to Pyridines1

[Frank; Meikle Journal of the American Chemical Society, 1950 , vol. 72, p. 4184]

Preparation of π-deficient heteroarylzinc halides by oxidati...

[Sakamoto, Takao; Kondo, Yoshinori; Murata, Naoko; Yamanaka, Hiroshi Tetrahedron, 1993 , vol. 49, # 43 p. 9713 - 9720]

Justus Liebig's Annalen Der Chemie. Über die Einwirkung des ...

[Baeyer; Piccard Justus Liebigs Annalen der Chemie, 1911 , vol. 384, p. 220 Justus Liebigs Annalen der Chemie, 1915 , vol. 407, p. 339]