Reaction of Ketone Hydrazones with Diselenium Dihalides: Simple Synthesis of. DELTA. 3-1, 3, 4-Selenadiazolines and 2, 5-Diarylselenophenes

…, T Izaki, K Kubo, K Shioji, Y Yokomori

Index: Okuma, Kentaro; Izaki, Toshiharu; Kubo, Kento; Shioji, Kosei; Yokomori, Yoshinobu Bulletin of the Chemical Society of Japan, 2005 , vol. 78, # 6 p. 1121 - 1126

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Citation Number: 5

Abstract

Sterically congested cis-and trans-Δ 3-1, 3, 4-selenadiazolines were isolated by one-pot reactions of ketone hydrazones with diselenium dibromide, which suggested the in situ formation of selone and diazoalkane intermediates. The thermolysis of these compounds gave symmetrical olefins, whereas oxidation afforded the corresponding azines. The reaction of acetophenone hydrazones with diselenium dibromide afforded 2, 5- ...