Fluorsilylsubstituierte N, N- und N, O-bis(trimethylsilyl)-hydroxylamine

Abstract

Fluoro- und aminofluoro-silanes react with the lithium salt of N, O-bis(trimethylsilyl)hydroxylamine under LiF elimination and substitution. Alkyl- and amino-fluorosilanes give O-fluorosilyl- N, N-bis(trimethylsilyl)hydroxylamines, arylfluorosilanes give N-fluorosilyl- N, O-bis(trimethylsilyl)hydroxylamines. By the further reaction of O-difluorosilyl- N, N-bis(trimethylsilyl)hydroxylamine with the lithiated hydroxylamine, O, O′-fluoromethylsilyldi[ N, N-bis(trimethylsilyl)hydroxylamine] is formed. On heating N-difluorophenylsilyl- N, O-bis(trimethylsilyl)hydroxylamine di[fluorophenylsilyl(methyl)amino]pentamethylsiloxane is formed by methyl group migration. The NMR and mass spectra of the compounds are reported.