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ChemInform Abstract: Lewis Acid Induced Rearrangement of α-[Bis(methylthio)methylene]ethyl-2-styrylcyclopropylcarbinols: Unexpected Formation of a Novel Bicyclo[3.2.1]octadiene Framework.

✍ Scribed by U. K. Syam Kumar; Pranab K. Patra; Hiriyakkanavar Ila; Hiriyakkanavar Junjappa; Parimal K. Bharadwaj

Publisher: John Wiley and Sons
Year: 2000
Weight: 34 KB
Volume: 31
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.200039046

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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