Correction to: Nature Catalysis https://doi.org/10.1038/s41929-018-0207-1, published online 7 January 2019.

In the version of this Article originally published, some compounds in Fig. 4 had incorrect footnote notation: for 5b 47%*,b should be 47%ab; for 6w 65%‡§¶ should be 65%cdf; for 6x 50%‡§¶,” should be 50%cdf and for 6y 59%‡§¶ should be 59%cdf. Furthermore, in Fig. 2b, for the arylation reaction the text read “H–Base+ X–” but should be H-Base+X; in Fig. 3d, the reaction arrow was labelled “Doxane-d8” but should be Dioxane-d8; and in Fig. 1c there was an extraneous horizontal line at top right. All these errors have now been amended.