123559-07-9Relevant academic research and scientific papers
Vilsmeier-Haack reactions of α-hydroxyketenedithioacetals: A facile synthesis of substituted pyridines
Thomas, Ajith Dain,Asokan
, p. 2273 - 2275 (2007/10/03)
The reaction of α-hydroxyketenedithioacetals, generated by the 1,2-addition of methyl Grignard reagent to α-oxoketenedithioacetals, with the Vilsmeier reagent was investigated. The reaction proceeds with acid-catalysed dehydration to afford sulphur substituted 1,3-butadienes, which undergo subsequent iminoalkylations. The intermediate iminium salts formed were successfully transformed into 2-methylsulfanyl substituted 4-aryl pyridines, in the presence of ammonium acetate
STUDIES ON DIELS-ALDER CYCLOADDITIONS OF VINYLKETENE DITHIOACETALS
Gupta, Arun K.,Ila, Hiriyakkanavar,Junjappa, Hiriyakkanavar
, p. 1509 - 1516 (2007/10/02)
The Diels-Alder cycloadditions of the acyclic and cyclic vinylketene dithioacetals 4 prepared from the corresponding oxoketene dithioacetals 2, either by 1,2-addition of methylmagnesium iodide and subsequent dehydration or by Wittig reaction, were studied
Polarized Ketene Dithioacetals. Part 42. Studies on the Reactions of Alkyl and Aryl Grignard Reagents with α-Oxoketene Dithioacetals
Singh, Gurdeep,Purkayastha, Makhan L.,Ila, Hiriyakkanavar,Junjappa, Hiriyakkanavar
, p. 1289 - 1294 (2007/10/02)
The oxoketene dithioacetals (2a-k) derived from a variety of cyclic and acyclic active methylene ketones undergo 1,2-addition with methylmagnesium iodide to give the alcohol acetals (3a-k) which, on subsequent boron trifluoride-ether catalysed methanolysi
