Reactions that use either indazole boronic acid 2a or boronic ester derivative 2b perform significantly better (under the conditions tested), sharing similar reactivity. Irrespective of the choice of the organoboron derivative, there is a marked trend in (pseudo-) haloquinoline choice – the worst performing substrate being 6-Cl-Q 1a , with its strong carbon-chloride bond (oxidative addition being more challenging , ).
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Extracting Mechanistic Information from an Open Data Set for a Pharma-Relevant Suzuki-Miyaura Cross-Coupling Reaction.
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