- Facile 1,3-shift of chlorine in a chlorocarbonylketene
-
Chlorocarbonyl(phenyl)ketene (2) undergoes a degenerate 1,3-shift of chlorine, as determined by 13C NMR spectroscopy. The two carbonyl signals (183 and 157 ppm) coalesce at -30°C, and from this as well as line-shape analysis, an activation barr
- Finnerty, Justin,Andraos, John,Yamamoto, Yohsuke,Wong, Ming Wah,Wentrup, Curt
-
-
Read Online
- Preparation of arylpropynamides and their reaction with malonyl acid derivatives
-
Synthesis of arylpropynamides and their reactions with different malonic acid derivatives is described. Treatment of arylpropynamides with unsubstituted malonyl chloride furnished N-(3-arylprop-2-ynoyl)-6-chloro-4-hydroxy-2-oxo-2H- pyran-3-carboxamides; m
- Petina, Olgaa. A.,Yakovlev, Igorp. P.,Geffken, Detlef
-
p. 803 - 809
(2013/04/10)
-
- A one pot synthesis of 5-phenyl-1,3-dioxane-4,6-dione derivatives
-
A general procedure for synthesis of 5-phenyl-1,3-dioxane-4,6-dione derivatives is described. The synthesis involves the cycloaddition of (α- chlorocarbonyl)phenylketene with carbonyl compounds to generate the corresponding substituted 2-oxetanone's which is readily transformed to the final products in one step. The 1,3-dioxane-4,6-dione is a rigid cyclic structure, and can undergo easy hydrolysis.
- Saidi,Shaterian,Sheibani
-
p. 2345 - 2351
(2007/10/03)
-
- Mesoionic Six-Membered Heterocycles, V. Reactions of 6-Oxo-6H-1,3-oxazin-3-ium-4-olates with o-Quinones and Heterocumulenes
-
Mesoionic 6-oxo-6H-1,3-oxazine-3-ium-4-olates (1, 7) react with o-quinones (2, 4) to give compounds 3, 5, which may result from a primary cycloaddition and subsequent loss of carbon dioxide.Phenyl isocyanate and phenylisothiocyanate react with 1h and
- Friedrichsen, Willy,Kujath, Eckard,Liebezeit, Gerd
-
p. 222 - 233
(2007/10/02)
-