Catalysis science and technology p. 1492 - 1497 (2020)
Update date:2022-07-29
Topics:
B?chtle, Franziska
Plietker, Bernd
Rami, Fabian
The structurally defined Fe-H complex FeH(CO)(NO)(Ph3P)2 catalyzes the efficient stereoselective hydroboration of a variety of internal alkynes using either pinacolborane (HBpin) or bis(pinacolato)diboron (B2pin2) as a boron source. Upon hydroboration of unsymmetrical internal alkynes, a boron-source dependent regioselectivity was observed. Whereas the use of HBpin provides access to products that can be rationalized through a borylferration mechanism, a complementary regioselectivity was observed using B2pin2, which is indicative of a hydroferration mechanism.
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