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Diastereoselective protonation after the Birch reduction of pyrroles

✍ Scribed by A. Schäfer; B. Schäfer

Book ID: 104209637
Publisher: Elsevier Science
Year: 1999
Tongue: French
Weight: 230 KB
Volume: 55
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(99)00730-9

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✦ Synopsis

Non-alkylated 3,4-dehydroprolines are obtained by diastereoselective protonation after Birch reduction of N-Boc-pyrrole carboxylic amides. Based on quantum chemical calculations the mechanism of asymmetric protonation is discussed.

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