Polymer-Supported Ammonium Fluoride: A Useful Reagent for Si-O Bond Cleavage
摘要:
Polymer-supported ammonium fluoride (1) is a convenient reagent for Si-O bond cleavage. Resin 1 is inexpensive, easy to prepare from commercial amine-containing anion exchange resins and aqueous hydrofluoric acid, easy to store. The product is easily separated from the reaction mixture by filtration. The used resins can be regenerated and reused without losing its reactivity.
Formation of Dialkyl α-Siloxybenzylphosphonate<i>via</i>1,2-Anionic Rearrangement of a Silyl Group
作者:Akira Sekiguchi、Masayuki Ikeno、Wataru Ando
DOI:10.1246/bcsj.51.337
日期:1978.1
The reactions of silyl phenyl ketones with trialkyl phosphites and dialkyl sodiophosphonates gave dialkyl α-siloxybenzylphosphonates in good yields. The mechanism involves the migration of a silylgroupfromcarbon to anionic oxygen. No deoxygenation of silyl ketone with trialkyl phosphite was observed.