Reaction of Pyridinium N-Ylides with Ketenethioacetal Derivatives

YOSHINORI TOMINAGA; YOSHINORI MIYAKE; HIROSHI FUJITO; KEIJI KURATA; HIROYOSHI AWAYA; YOSHIRO MATSUDA; GORO KOBAYASHI

doi:10.1248/cpb.25.1528

YOSHINORI TOMINAGA, YOSHINORI MIYAKE, HIROSHI FUJITO, KEIJI KURATA, HIROYOSHI AWAYA, YOSHIRO MATSUDA, GORO KOBAYASHI

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Keywords: cyclization of pyridinium allylide

JOURNAL FREE ACCESS

1977 Volume 25 Issue 7 Pages 1528-1533

DOI https://doi.org/10.1248/cpb.25.1528

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Abstract

Reaction of the pyridinium N-ylides with ketenethioacetals in the presence of triethylamine or potassium carbonate as a base in ethanol or dimethylformamide gave the pyridinium N-allylides which were readily cyclized to afford the indolizine derivatives.

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