Homo- and Cross-Coupling of Phenylacetylenes and α-Hydroxyacetylenes Catalyzed by a Square-Planar Rhodium Monohydride
Laura A. de las Heras,
Miguel A. Esteruelas,
Montserrat Oliván
et al.
Abstract:The C–C triple bond of phenylacetylene undergoes
the anti-Markovnikov addition of the Rh–H
bond of RhH{κ3-P,O,P-[xant(PiPr2)2]} (1; xant(PiPr2)2 = 9,9-dimethyl-4,5-bis(diisopropylphosphino)xanthene)
to give Rh{(E)–CHCHPh}{κ3-P,O,P-[xant(PiPr2)2]} (2), which reacts
with a second alkyne molecule to produce Rh(CCPh){κ3-P,O,P-[xant(PiPr2)2]} (3) and styrene before the transformation
from 1 to 2 is complete. The metal center
of 3 undergoes the oxidative addition of the C(sp)–H
bond of another alkyne molecule to p… Show more
Set email alert for when this publication receives citations?
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.