Boron-Catalyzed Carboxylic Acid-Selective Aldol Reaction with Trifluoromethyl Ketones
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- Ishizawa Kouhei
- Graduate School of Pharmaceutical Sciences, The University of Tokyo Sohyaku Innovative Research Division, Mitsubishi Tanabe Pharma Corporation
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- Nagai Hideoki
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
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- Shimizu Yohei
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
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- Kanai Motomu
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
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Abstract
<p>A catalytic carboxylic acid-selective aldol reaction with trifluoromethyl ketones was developed. Reversible and selective covalent bond formation between a boron catalyst and a carboxylic acid is key to realizing the unprecedented catalytic aldol reaction of simple carboxylic acids. The reaction proceeded chemoselectively at the α-position of carboxylic acid even in the presence of ketone, ester, or amide functional groups in the donor substrates. The chemoselectivity is beneficial for late-stage derivatizations of biologically relevant compounds, as demonstrated by the conversion of indomethacin and triacetylcholic acid.</p>
Journal
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- Chemical and Pharmaceutical Bulletin
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Chemical and Pharmaceutical Bulletin 66 (3), 231-234, 2018
The Pharmaceutical Society of Japan
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Details 詳細情報について
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- CRID
- 1390282679155294080
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- NII Article ID
- 130006407099
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- NII Book ID
- AA00602100
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- ISSN
- 13475223
- 00092363
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- NDL BIB ID
- 028853948
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- PubMed
- 28824027
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed