52143-39-2Relevant academic research and scientific papers
One-pot synthesis of N-phenyl-N′-(arylcarbonothioyl)-N-arylhydrazide derivatives from hydrazonoyl chlorides with sodium sulfide and aryldiazonium salts
Hashemi, Seyed Abolghasem,Khalili, Gholamhossein
, p. 48 - 53 (2016)
The one-pot synthesis of N-phenyl-N′-(arylcarbonothioyl)-N-arylhydrazides is described by the reaction between two equiv. of hydrazonoyl chloride and sodium sulfide in the presence of aryldiazonium fluoroborates in DMF at room temperature.
RECYCLIZATION REACTIONS. 26. RECYCLIZATION OF HETEROARENIUM SALTS BY ACTION OF ACID ANHYDRIDE IN THE PRESENCE OF BASE
Lipnitskii, V. F.,Shvaika, O. P.
, p. 1398 - 1403 (2007/10/02)
When oxazolium, 1,3,4-thia- and -selenodiazolium, or pyrylium salts react with acid anhydride in the presence of base, they are recyclized to pyrrole, pyrazole, and benzene derivatives, respectively.The typical features of recyclization involving anhydride in a number of five-membered systems are discussed.
