![Author ORCID: We display the ORCID iD icon alongside authors names on our website to acknowledge that the ORCiD has been authenticated when entered by the user. To view the users ORCiD record click the icon. [opens in a new tab]](https://chemrxiv.org/engage/assets/public/chemrxiv/images/logos/orcid.png)
Abstract
A cobalt-catalyzed reductive hydroformylation of terminal and 1,1-disubstituted alkenes is described. One-carbon homologated alcohols were synthe-sized directly from CO and H2, affording anti-Markovnikov products (34–87% yield) with exclu-sive regiocontrol (linear/branch > 99:1) for mini-mally functionalized alkenes. Irradiation of the air-stable cobalt hydride, (dcype)Co(CO)2H (dcype = dicyclohexylphosphinoethane) with blue light gen-erated the active catalyst that mediates alkene hy-droformylation and subsequent aldehyde hydro-genation. Mechanistic origins of absolute regiocon-trol were investigated by in-situ monitoring of the tandem catalytic reaction using high-pressure mul-tinuclear NMR spectroscopy.
