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In this study, we found that the sterically bulky α‐hydroxycarboxamide moiety is a suitable framework for protecting the boronyl group of boron reagents during aminations. Condensation of α‐hydroxycarboxamide with ArB(OH)2 produced aryloxazaborolidinone (ArOxB). The reactivity of the C‐B bond in ArOxB is easily controlled by the steric and weak electronic effects of the backbone. H2N‐(or Br−)ArOxB...
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