Reaction of α-Oxoketene Dithioacetals with Arylamines in the Presence of BF3-OEt2 for the Synthesis of Ketene S, N-Acetals

Shinya KOHRA; Shinichiro TURUYA; Munefumi KIMURA; Koichiro OGATA; Yoshinori TOMINAGA

doi:10.1248/cpb.41.1293

Reaction of α-Oxoketene Dithioacetals with Arylamines in the Presence of BF₃-OEt₂ for the Synthesis of Ketene S, N-Acetals

Shinya KOHRA, Shinichiro TURUYA, Munefumi KIMURA, Koichiro OGATA, Yoshinori TOMINAGA

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Keywords: α-oxoketene dithioacetal, α-oxoketene S, N-acetal, Lewis acid, BF₃-OEt₂, enaminoketone

JOURNAL FREE ACCESS

1993 Volume 41 Issue 7 Pages 1293-1296

DOI https://doi.org/10.1248/cpb.41.1293

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Abstract

Reaction of α-oxoketene dithioacetals with arylamines was accelerated with a catalytic amount of BF₃-OEt₂ to give the corresponding α-oxoketene S, N-acetals selectively in good yields.

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