Fig. 8: Competition experiments with 2-mercaptobenzothiazole 8f as reference nucleophile.

a Competition experiment of EPrS 1f vs. QPrS 1a. b Competition experiment of EPrS 1e vs. QPrS 1a.
a Competition experiment of EPrS 1f vs. QPrS 1a. b Competition experiment of EPrS 1e vs. QPrS 1a.