Catalytic Synthesis of N-Unprotected Piperazines, Morpholines, and Thiomorpholines from Aldehydes and SnAP Reagents

Commercially available SnAP (stannyl amine protocol) reagents allow the transformation of aldehydes and ketones into a variety of N‐unprotected heterocycles. By identifying new ligands and reaction conditions, a robust catalytic variant that expands the substrate scope to previously inaccessible het...

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Bibliographic Details
Published inAngewandte Chemie Vol. 127; no. 37; pp. 11034 - 11038
Main Authors Luescher, Michael U., Bode, Jeffrey W.
Format Journal Article
LanguageEnglish
German
Published Weinheim WILEY-VCH Verlag 07.09.2015
WILEY‐VCH Verlag
Wiley Subscription Services, Inc
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Summary:Commercially available SnAP (stannyl amine protocol) reagents allow the transformation of aldehydes and ketones into a variety of N‐unprotected heterocycles. By identifying new ligands and reaction conditions, a robust catalytic variant that expands the substrate scope to previously inaccessible heteroaromatic substrates and new substitution patterns was realized. It also establishes the basis for a catalytic enantioselective process through the use of chiral ligands. SnAPcat! Die Identifizierung neuer Liganden und Reaktionsbedingungen führt zu einer robusten katalytischen Methode für die Synthese von N‐ungeschützten Heterocyclen unter Verwendung von SnAP‐Reagentien. Diese katalytische Variante ermöglicht die Synthese bislang nicht zugänglicher Piperazine, Morpholine und Thiomorpholine und stellt die Grundlage für eine katalytische enantioselektive Reaktionsführung mit chiralen Liganden dar.
Bibliography:istex:A4D6AEBC653C9EB22AF1A87E46E739533E8524AC
European Research Council - No. 306793 - CASAA
ETH Research Grant - No. ETH-12 11-1
ArticleID:ANGE201505167
ark:/67375/WNG-T0C42VV5-B
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0044-8249
1521-3757
DOI:10.1002/ange.201505167