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Palladium‐ and Ruthenium‐Catalyzed Cycloisomerization of Enynamides and Enynhydrazides: A Rapid Approach to Diverse Azacyclic Frameworks
Author(s) -
Walker P. Ross,
Campbell Craig D.,
Suleman Abid,
Carr Greg,
Anderson Edward A.
Publication year - 2013
Publication title -
angewandte chemie
Language(s) - German
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201304186
Subject(s) - cycloisomerization , ruthenium , palladium , catalysis , chemistry , medicinal chemistry , stereochemistry , combinatorial chemistry , organic chemistry
Unter milden Bedingungen überführt die Titelreaktion Eninamide hoch stereoselektiv und in hohen Ausbeuten in Stickstoffheterocyclen. Entsprechende Transformationen mit Eninhydraziden eröffnen neue Routen zu Pyrazol‐ und Indazolgerüsten. Boc= tert ‐Butoxycarbonyl, EWG=elektronenziehende Gruppe, Ns=4‐Nitrobenzolsulfonyl, Ts=4‐Toluolsulfonyl.

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