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Regioselective N-Vinylation of Cyclic Thionocarbamates Through a Vinyl Bis-Sulfone Methodology.

✍ Scribed by Jolanta Girniene; Sebastien Tardy; Arnaud Tatibouet; Algirdas Sackus; Patrick Rollin

Book ID: 101968942
Publisher: John Wiley and Sons
Year: 2004
Weight: 28 KB
Volume: 35
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.200448114

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## Abstract For Abstract see ChemInform Abstract in Full Text.

ChemInform Abstract: A Novel and Regiose

ChemInform Abstract: A Novel and Regioselective Pyridine-Ring Formation by Lewis Acid-Induced Cyclization of 2-(N-Allylbenzylamino)-3-[2,2-bis(ethoxycarbonyl)vinyl]pyrido [1,2-a]pyrimidin-4(4H)-one.

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A Novel and Regioselective Pyridine-Ring Formation by Lewis Acid-Induced Cyclization of 2-(N-Allylbenzylamino)-3-[2,2bis(ethoxycarbonyl)vinyl]pyrido [1,2-a]pyrimidin-4(4H)-one. -The title pyridine-ring formation is achieved via an intermediately obtained iminium betaine according to the "tert-amino