Synthesis of Pyrroles through a 4π-Electrocyclic Ring-Closure Reaction of 1-Azapentadienyl Cations

R Narayan, R Fröhlich…

Index: Matoba, Katsuhide; Terada, Takashi; Sugiura, Masaru Heterocycles, 1987 , vol. 26, # 1 p. 55 - 58

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Citation Number: 15

Abstract

... Volume: Page: Digital Object Identifier (DOI). ... Then we turned our attention to the “super acid” triflic acid. We found that the alcohol 4a underwent a clean reaction in 15 min at −10 °C when 1 or more ...