Journal
ACS CATALYSIS
Volume 6, Issue 11, Pages 7892-7897Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.6b02290
Keywords
alkenes; alkynes; phosphines; homogeneous catalysis; heterofunctionalization; P-C bond formation; iron; radicals; hydrofunctionalization; phospholanes; phosphinanes
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Funding
- EPSRC [EP/M019810/1]
- University of Bath
- Engineering and Physical Sciences Research Council [EP/M019810/1, 1499614] Funding Source: researchfish
- EPSRC [EP/M019810/1] Funding Source: UKRI
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The catalytic addition of phosphines to alkenes and alkynes is a very attractive process that offers access to phosphines in a 100% atom-economic reaction using readily available and inexpensive materials. The products are potentially useful ligands and organocatalysts. Herein, we report the first example of intramolecular hydrophosphination of a series of nonactivated phosphinoalkenes and phosphinoalkynes with a simple iron beta-diketiminate complex. Kinetic studies suggest that this transformation is first-order with respect to both the phosphine and the catalyst. A mechanistic interpretation of the iron-catalyzed hydrophosphination is presented, supported by the experimental evidence collected.
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