doi:10.1002/adsc.202000514engNolla-Saltiel, R.Geer, A.M.Taylor, L.J.Churchill, O.Davies, E.S.Lewis, W.Blake, A.J.Kays, D.L.Hydrophosphination of Activated Alkenes by a Cobalt(I) Pincer ComplexART-2020-118726Herein we report the synthesis of three heteroleptic first-row transition metal(II) complexes containing carbazolido NNN pincer ligands and conversion to the corresponding metal(I)-carbonyl complexes via a reductive carbonylation route. These complexes are precatalysts for the hydrophosphination of activated alkenes, affording a cobalt-catalysed hydrophosphination process that solely and selectively yields the ß addition (anti-Markovnikov) product. The scope of this transformation has been investigated using a variety of activated alkenes. Isolation and characterisation of substrate-coordinated intermediates reveal available coordination sites, which provide insight into the proposed catalytic cycle.2020http://zaguan.unizar.es/record/9507210.1002/adsc.202000514http://zaguan.unizar.es/record/95072oai:zaguan.unizar.es:95072Advanced Synthesis and Catalysis 362, 15 (2020), 3148-3157byhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccess