Reaction of phenyltrifluorosilane with 8-hydroxy- or 8-mercapto-quinoline and their derivatives as a route to new heterocyclic compounds of pentacoordinate silicon

The protodesilylation of phenyltrifluorosilane with 8‐hydroxy‐ and 8‐mercapto‐quinoline NC9H6YH (Y: O, 1a; S, 1b) affords the novel intramolecular pentacoordinate silanes (N $\longrightarrow$ Si) 8‐(trifluorosiloxy)‐ and (N $\longrightarrow$ Si) 8‐(trifluorosilylthio)‐quinoline respectively. The (N $\longrightarrow$ Si) 8‐(Phenyldifluorosiloxy)‐ and (N $\longrightarrow$ Si) 8‐(phenyldifluorosilylthio)‐quinolines prepared by the transsilylation reaction of trimethylsilyl derivatives of heterocycles 1a and 1b by phenyltrifluorosilane possess a similar pentacoordinate structure. Copyright © 2005 John Wiley & Sons, Ltd. The protodesilylation of phenyltrifluorosilane with 8‐hydroxy‐ and 8‐mercapto‐quinoline NC9‐H6YH (Y:O, 1a; S, 1b) affords the novel intramolecular pentacoordinate silanes (N $\longrightarrow$ Si) 8‐(trifluorosiloxy)‐ and (N $\longrightarrow$ Si) 8‐(trifluorosilylthio)‐quinoline respectively. (N $\longrightarrow$ Si) 8‐(Phenyldifluorosiloxy)‐ and (N $\longrightarrow$ Si) 8‐(phenyldifluorosilylthio)‐quinolines prepared by the transsilylation reaction of trimethylsilyl derivatives of heterocycles 1a and 1b by phenyltrifluorosilane possess a similar pentacoordinate structure.