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Synlett 1997; 1997(5): 597-599
DOI: 10.1055/s-1997-3207
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Diarylborinic Acids as Efficient Catalysts for Selective Dehydration of Aldols

Kazuaki Ishihara, Hideki Kurihara, Hisashi Yamamoto*
  • *Graduate School of Engineering, Nagoya University, CREST, Japan Science and Technology Corporation (JST), Furo-cho, Chikusa, Nagoya 464-01, JAPAN; Fax: 81-52-789-3222
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Publication Date:
31 December 2000 (online)

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Diarylborinic acids with electron-withdrawing substituents at their aryl groups are efficient Lewis acid catalysts for Mukaiyama aldol condensation and selective dehydration of anti-aldols to α,β-enones in the presence of syn-aldols. The Lewis acidities of diarylborinic acids are much higher than those of the corresponding arylboronic acids.

diarylborinic acid - Mukaiyama aldol condensation - substarte-diastereoselective dehydration

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