TY - JOUR
T1 - 1,2-Halosilane vs. 1,2-alkylborane elimination from (boryl)(silyl) complexes of iron
T2 - Switching between borylenes and silylenes just by changing the alkyl group
AU - Braunschweig, Holger
AU - Dewhurst, Rian D.
AU - Radacki, Krzysztof
AU - Wennemann, Benedikt
AU - Ye, Qing
N1 - Publisher Copyright:
© The Royal Society of Chemistry 2015.
PY - 2015
Y1 - 2015
N2 - Reaction of different combinations of aryl(dihalo)boranes and trialkylsilyl iron metallates, a route previously used to prepare a terminal iron arylborylene complex, is found to lead to three distinct new reaction outcomes, including unselective decomposition, an inert iron(ii) (boryl)(silyl) complex, and a dinuclear bis(μ-silylene) complex. The latter result is to our knowledge the first example of a 1,2-alkylborane elimination, in contrast to the facile and ubiquitous 1,1-alkylborane elimination observed from (alkyl)(boryl) transition metal complexes, and is also a novel route to bridging silylene complexes.
AB - Reaction of different combinations of aryl(dihalo)boranes and trialkylsilyl iron metallates, a route previously used to prepare a terminal iron arylborylene complex, is found to lead to three distinct new reaction outcomes, including unselective decomposition, an inert iron(ii) (boryl)(silyl) complex, and a dinuclear bis(μ-silylene) complex. The latter result is to our knowledge the first example of a 1,2-alkylborane elimination, in contrast to the facile and ubiquitous 1,1-alkylborane elimination observed from (alkyl)(boryl) transition metal complexes, and is also a novel route to bridging silylene complexes.
UR - http://www.scopus.com/inward/record.url?scp=84943769177&partnerID=8YFLogxK
U2 - 10.1039/c5cc06425b
DO - 10.1039/c5cc06425b
M3 - Article
SN - 1359-7345
VL - 51
SP - 15465
EP - 15468
JO - Chemical Communications
JF - Chemical Communications
IS - 84
ER -