84998-49-2Relevant academic research and scientific papers
o-PHOSPHINOPHENOLE DURCH 1,3-CARBANIONISCHE UMLAGERUNGEN o-METALLIERTER AROXYPHOSPHINE
Heinicke, J.,Nietzschmann, E.,Tzschach, A.
, p. C17 - C21 (2007/10/02)
Phosphinous acid o-bromoaryl esters or phosphorous acid o-haloaryl ester diamides react with sodium under mild conditions to give the corresponding sodium aryls which undergo rapid 1,3-carbanionic rearrangements to give o-phosphinophenolates.These may be worked up to the free phenoles or silylated by treatment with Me3SiCl.
SYNTHESE UND UMLAGERUNGSREAKTIONEN VON o-FUNKTIONELLEN PHENYLLITHIUM- UND PHENYLNATRIUM DERIVATEN DER IVB UND VB-ELEMENTE
Heinicke, J.,Nietzschmann, E.,Tzschach, A.
, p. 1 - 8 (2007/10/02)
While o-substituted bromobenzene derivatives of the type o-BrC6H4XERn (X = O, S; ERn = SiMe3) and n-BuLi undergo metal halogen exchange followed by silyl-X -> C rearrangement, the corresponding compounds of phosphorus, arsenic or tin are split at the E-X bond. o-Metal derivatives o-MI-C6H4XERn (X = O, NMe; E = P, As, Sn) of these elements may be generated, however, by direct reaction with sodium or lithium.They are unstable and furnish o-hydroxy- and o-aminophenyl element(IV, V) derivatives via an intramolecular anionic rearrangement.
