Ruthenium catalysed C-H bond borylation.
An easily prepared series of phenylindenyldihydridosilyl ruthenium complexes () was obtained by reaction of tertiary silanes with the commercially-available [RuCl(3-phenylindenyl)(PPh3)2] (). The [RuH2(3-phenylindenyl)(SiEt3)] () complex was shown to be highly efficient (1.5 mol%) in the ortho-selective borylation of pyridyl substrates, with yields of up to 90%. A novel ruthenium(iv)-catalysed C-H activation borylation/functionalization reaction using a remarkably low catalyst loadings is described.
EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK. snolan@st-andrews.ac.uk.
José A
JA
Fernández-Salas
Simone
S
Manzini
Lorenzo
L
Piola
Alexandra M Z
AM
Slawin
Steven P
SP
Nolan