β,β-Dichlorovinyldiazonium or dichloro(diazomethyl)carbenium ion? Crystal structure and electron density distribution of β,β-dichlorovinyldiazonium hexachloroantimonate
Convenient One-Pot Synthesis of Sodium Salt of 5-Mercapto-1,2,3-thiadiazole
作者:Katsumasa Harada、Teruhiko Inoue、Hiroshi Yoshida
DOI:10.3987/com-96-s45
日期:——
Trichloroacetoaldehyde-p-toluenesulfonylhydrazone (3) derived from chloral hydrate reacted in situ with polysulfide salt in the range of pH 10 similar to 11 to afford the corresponding 5-mercapto-1,2,3-thiadiazole salt(2) in high yield (69.5 %).
A Convenient Synthesis of 1,2,3-Triazoles Using Dichloroacetaldehyde
1-Substituted 1,2,3-triazoles were prepared by the reaction of dichloroacetaldehyde tosyl- or mesylhydrazone with ammonia, amino derivatives, and hydrazine in good yield.