Synthesis p. 744 - 747 (1986)
Update date:2022-08-04
Topics:
Singh, Gurdeep
Ila, Hiriyakkanawar
Junjappa, Hiriyakkanawar
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.
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