Edge Article
Chemical Science
spectra and X-ray diffraction analysis of inert species 9,
a preliminary mechanism was proposed. Further mechanistic
studies are in progress. We believe that these ndings will
trigger the further development of high-performance amidation
catalysts.
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Acknowledgements
Financial support for this project was partially provided by the
Program for Leading Graduate Schools: IGER Program in Green
Natural Sciences (MEXT), JSPS KAKENHI Grant Numbers
26620079, 15K13692, and 15H05755.
9 For recent examples of boron catalysts for reactions
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10 The unstable counter anion of 7, ArB(OH)Oꢁ, may be
immediately converted to [ArBL3]ꢁ in the presence of
carboxylic acids and amines.
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Notes and references
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16 9z was produced with N-benzylphthalimide through the
dehydrative condensation reaction between phthalic acid
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DMAPO (5 mol%) in uorobenzene under azeotropic reux
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17 Intermediate 13 was prepared from DMAPO and the
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