Stuart Macgregor responded: Experimentally, the competition reactions were performed in a
4: 1 mixture of dichloromethane: methanol. In methanol, the reactions both proceed more
rapidly and also go more to full completion, while dichloromethane was introduced to ensure
the solubility of all products. We therefore ran calculations incorporating a correction for pure
methanol and a second set (in the supporting information) with pure dichloromethane.
Importantly, the trends are identical with these two approaches, but with higher computed …

Please send your corrections either as a copy of the proof PDF with electronic notes
attached or as a list of corrections. Do not edit the text within the PDF or send a revised
manuscript as we will not be able to apply your corrections. Corrections at this stage should
be minor and not involve extensive changes.