89522-39-4Relevant articles and documents
Synthesis of Some 4-Substituted-2-(o-halogenophenyl)-1,2,3-triazoles
Swartz, David L.,Karash, Angela R.,Berry, Laura A.,Jaeger, David L.
, p. 1561 - 1564 (2007/10/02)
Mesoladehyde 1,3-dioxime was treated with either 2,4,6-trichlorophenyl- (a), o-fluorophenyl- (b), or o-bromophenyl- (c) hydrazine to give corresponding mesoaldehyde 1,3-dioxime-2-halogenophenylhydrazones (1a,b,c).The latter were O-acetylated with acetic anhydride, and cyclized to triazole 4-oximes (3b,c) or triazole 4-O-acetyloximes (6a,b,c) with cesium carbonate, then converted to nitrile (7a,b,c) by refluxing with acetic anhydride followed by pyrolysis, or to aldehydes (4a,b,c) by hydrolysis.The nitriles (7a,b,c) were also converted to acids (9a,b,c), esters (10a,b,c), amides (8a,c), an alcohol (11a), and an amine (12a).In addition , tetrazoles of two types were prepared.The first (13d,e) were obtained from the acid chlorides by the action of 5-aminotetrazole, whereas the second (14f) was produced from the respective nitrile by the action of ammonium azide.