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Issue 5, 2020
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Hydroboration of internal alkynes catalyzed by FeH(CO)(NO)(PPh3)2: a case of boron-source controlled regioselectivity

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Abstract

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.

Graphical abstract: Hydroboration of internal alkynes catalyzed by FeH(CO)(NO)(PPh3)2: a case of boron-source controlled regioselectivity

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Article information


Submitted
05 Dec 2019
Accepted
15 Jan 2020
First published
16 Jan 2020

Catal. Sci. Technol., 2020,10, 1492-1497
Article type
Paper

Hydroboration of internal alkynes catalyzed by FeH(CO)(NO)(PPh3)2: a case of boron-source controlled regioselectivity

F. Rami, F. Bächtle and B. Plietker, Catal. Sci. Technol., 2020, 10, 1492
DOI: 10.1039/C9CY02461A

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