Disulfides of the benzo-2,1,3-thiadiazole series

✍ Scribed by I. A. Belen'kaya; T. A. Shulla

• Book ID: 104783390
• Publisher: Springer US
• Year: 1989
• Tongue: English
• Weight: 457 KB
• Volume: 25
• Category: Article
• ISSN: 0009-3122
• DOI: 10.1007/bf00481530

✦ Synopsis

A solution of 1 g (0.012 mole) of sodium nitrite in i0 ml of water was added to a hot solution of 2.7 g (0.01 mole) of 3-phenyl-4,5-dichloro-l,2,3-thiadiazolium chloride in 20 ml of 50% ethanol.

The darkyellow precipitate was filtered, and recrystallized from a benzene-heptane (I:I) mixture. Yield, 81%, mp 175-176~

[4]. Mass spectrum: M + 223. IR spectrum: 1660 cm -I (C=O), UV spectrum, ima x (log s): 228 (3.82), 280 (3.4); 425 nm (4.03).