STUDY OF THE CATALYTIC PROPERTIES OF TRIS (3,6-DIOXAHEPTYL)AMINE (TDA-1) IN HETEROAROMATIC NUCLEOPHILIC SUBSTITUTION OF CHLOROPYRIDINES AND THEIR N-OXIDES

Article abstract of DOI:10.1016/S0040-4020(01)81663-X

Catalytic properties of tris(3,6-dioxaheptyl)amine (TDA-1) have been analyzed in reactions of alkoxydehalogenation of 2- and 4-chloropyridine and their N-oxides under solid-liquid phase transfer catalysis conditions.Alkoxypyridines were obtained in excellent yields but with N-oxides a competitive alkaline cleavage of the performed ether was observed.