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. Author manuscript; available in PMC: 2018 Apr 17.
Published in final edited form as: J Am Chem Soc. 2017 Oct 6;139(41):14533–14541. doi: 10.1021/jacs.7b07359

Figure 10.

Figure 10

Initial rate of product formation with different PdII precatalysts PdIIX2 (cf. Figure 8) relative to that observed with Pd2(dba)3 plotted as a function of the equilibrium ratio of bisamidate species observed from the reaction of different PdX2 sources with HSubF2 in Figure 9. The number in parentheses corresponds to the aqueous pKa of the corresponding conjugate acid of the anionic ligand, with the exception of O22–, for which the pKa corresponds to that of H2O2. For reference, the aqueous pKa of the parent N- methoxybenzamide substrate is 8.9;24 the 2,6-difluoro analogue will be more acidic owing to the inductive effect of the fluoro substituents.