Synthesis 2004(12): 1929-1931  
DOI: 10.1055/s-2004-829156
SHORTPAPER
© Georg Thieme Verlag Stuttgart · New York

Synthesis of 1,3,4-Thiadiazoles from Aldehyde Hydrazones

Kentaro Okuma*, Kazuko Nagakura, Yasutaka Nakajima, Kento Kubo, Kosei Shioji
Department of Chemistry, Faculty of Science, Fukuoka University, Jonan-ku, Fukuoka 814-0180, Japan
Fax: +81(92)8656030; e-Mail: kokuma@fukuoka-u.ac.jp;
Further Information

Publication History

Received 18 March 2004
Publication Date:
21 July 2004 (online)

Abstract

Reaction of p-tolualdehyde hydrazone with disulfur dichloride in the presence of DBU gave 2,5-di (p-tolyl)-1,3,4-thiadiazole (1a) in 54% yield. Phenyldiazomethane also reacted with disulfur dichloride to afford 2,5-diphenyl-1,3,4-thiadiazole (1b) in 80% yield.