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Page 8 of 11                            Ji et al. Chem Synth 2022;2:17  https://dx.doi.org/10.20517/cs.2022.27










































































                                                  Scheme 6. Mechanistic studies.

               cross-over product was obtained. Based on these observations, we believe that the Heck product was unable
               to participate in subsequent reactions with the arylboronic acid to form the 1,1-diarylation product.
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