1-fluoro-1-halo-3,6-dioxabicyclo [4.1.0]heptane preparation, process and
申请人:Rhone-Poulenc Chimie
公开号:US04992592A1
公开(公告)日:1991-02-12
A class of compounds, namely 1-fluoro-1-halo-3,6-dioxabicyclo[4.1.0]heptanes and a process using these compounds in the preparation of fluoromalonaldehyde acetals. The 1-fluoro-1-halo-3,6-dioxabicyclo[4.1.0]heptane is brought into contact with an alcohol in an acid medium. The fluoromalonaldehyde acetals obtained are also new products, which are useful for the synthesis of alkyl fluoromalonates or of fluorinated nitrogen-containing heterocycles.
Fluoromalonaldehyde bis(dialkyl acetals): synthesis by carbene condensation and transformation to dialkyl fluoromalonates and fluorinated heterocyclic compounds