Enantioselective chlorination and fluorination of β-keto phosphonates catalyzed by chiral Lewis acids
摘要：
The direct chiral Lewis acidic enantioselective chlorination and fluorination of β-keto phosphonates is presented; the chlorination proceeds in high yields and with up to 94% ee using NCS as the chloro source, while the fluorination with (PhSO2)2NF (NFSI) gives the optically active α-fluoro-β-keto phosphonates in moderate to good yields and with up to 91% ee.
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DOI：
10.1039/B415568H
被引量：
年份：
2005
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