99142-76-4Relevant academic research and scientific papers
Reactions of α-Oxoketenedithioacetals with Phenylmagnesium Bromide: Synhesis of Novel 1-Phenyl-1-methylthio-3-phenyl (or 2,3-Fused)-indenes and 2,3-Fused Heterocyclic-1,3-Diphenyl-2-alken-1-ones
Singh, Gurdeep,Ila, Hiriyakkanawar,Junjappa, Hiriyakkanawar
, p. 744 - 747 (2007/10/02)
Novel substituted and 1-methylthio-1-phenylindenes have been synthesised by boron trifluoride etherate cyclocondensations of the corresponding carbinol acetals obtained by sequential 1,4 and 1,2 additions of phenylmagnesium bromide to α-oxoketenedithioacetals.Some of these indenes have been desulphurized to give the parent ring systems.Synthesis of novel 2,3-fused heterocyclic 1,3-diphenyl-alken-1-ones by boron trifluoride-ether catalyzed methanolysis of the corresponding carbinol acetals has also been described.
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
