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. Author manuscript; available in PMC: 2021 Aug 12.
Published in final edited form as: J Am Chem Soc. 2020 Jul 30;142(32):13917–13933. doi: 10.1021/jacs.0c06243

Scheme 2.

Scheme 2.

Free Energy Network Connecting Various C─C Bond Forming Pathwaysa

aFree energy network of postdecarboxylation intermediates and key C─C bond forming transition states. Free energies relative to 3 (in kcal/mol) obtained with M06/def2-TZVP–CPCM(THF), with energies at the DLPNO-CCSD(T)/cc-pVTZ–CPCM(THF) level of theory in brackets. Lowest energy conformers depicted. bΔΔG refined to 1.9 kcal/mol with TightPNO settings.