The silyl-Prins and aza-silyl-Prins reactions have been employed for the preparation of 6-CF3-substituted dihydropyrans and 6-CF3-substituted tetrahydropyridines. The product heterocycles have been further elaborated to a number of products, including CF3-substituted pipecolates and hydroxylated pyrans and piperidines. (C) 2007 Elsevier Ltd. All rights reserved.
The silyl-Prins and aza-silyl-Prins reactions have been employed for the preparation of 6-CF3-substituted dihydropyrans and 6-CF3-substituted tetrahydropyridines. The product heterocycles have been further elaborated to a number of products, including CF3-substituted pipecolates and hydroxylated pyrans and piperidines. (C) 2007 Elsevier Ltd. All rights reserved.
Facile and Selective Alkylation of 3,3,3-Trifluoropropene Oxide (TFPO) with Organoaluminum Reagents via Pentacoordinate Trialkylaluminum Complexes
作者:Takashi Ooi、Mayumi Furuya、Keiji Maruoka
DOI:10.1246/cl.1998.817
日期:1998.8
A new organoaluminum-promoted selectivealkylation of 3,3,3-trifluoropropene oxide (TFPO) with several nucleophiles has been developed which involves the chelation-activated addition to fluoro epoxides via pentacoordinatetrialkylaluminumcomplexes.