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Obituary
Yoshito Kishi (1937-2023)
Yoshito Kishi (1937-2023)
Professor. Yoshito Kishi,
a member of the Honorary Editorial Associates of HETEROCYCLES,
has passed away on January 9, 2023 at the age of 85.
I deeply express my regret over his death.
Kunio Ogasawara
Editor
January 13, 2023
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Paper | Regular issue | Vol 71, No. 4, 2007, pp.855-863
Published online, 23rd February, 2007■ A Stepwise Synthesis of Bi-1,2,5-thiadiazole Compounds Using S4N4·SbCl5 Complex
Published online, 23rd February, 2007
DOI: 10.3987/COM-07-10989
■ A Stepwise Synthesis of Bi-1,2,5-thiadiazole Compounds Using S4N4·SbCl5 Complex
Kil-Joong Kim* and Kyongtae Kim
*Department of Chemistry, Texas A&M University, College Station, TX 77843-3255, USA
Abstract
Bi-1,2,5-thiadiazole compounds (7) were synthesized step by step by reaction of 1-(4-substituted-3-1,2,5-thiadiazolyl)alkanone oximes (6) with tetrasulfur tetranitride antimony pentachloride complex (S4N4·SbCl5, 1) in toluene at 100 °C for 0.5 h in 28 - 80% yields.
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