49604-64-0Relevant academic research and scientific papers
2-Ethyl-1-phenylindazolium hexafluorophosphate. N-heterocyclic carbene formation, rearrangement, ring-cleavage reactions, and rhodium complex formation
Guan, Zong,Gjikaj, Mimoza,Schmidt, Andreas
, p. 83 - 89 (2015/06/16)
2-Ethyl-1-phenylindazolium hexafluorophosphate was deprotonated by potassium 2-methylbutan-2-olate to give the N-heterocyclic carbene of indazole, i.e., indazol-3-ylidene. This N-heterocyclic carbene undergoes a ring transformation to 9-ethylaminoacridine
Reactions of lithium silylcuprates with pyrazolium and indazolium salts
Gonzalez-Nogal, Ana M.,Calle, Mariola,Cuadrado, Purificacion
, p. 6089 - 6096 (2008/09/17)
Although pyrazolium salts have been shown to be unreactive toward lithium carbocuprates, these substrates were opened by lithium silylcuprate reagents to give versatile N-silylated β-enaminoimines stabilized by coordination of the silyl group with both ni
Regioselective synthesis of silylated pyrazolines and indazolines by reaction of pyrazolium and indazolium salts with silyllithium reagents
Gonzalez-Nogal, Ana M.,Calle, Mariola,Calvo, Luis A.,Cuadrado, Purificacion,Gonzalez-Ortega, Alfonso
, p. 4663 - 4669 (2007/10/03)
Pyrazolium salts react with dimethylphenylsilyl- and tert- butyldiphenylsilyllithium to give, in general, only one of the two possible 5-silyl-3-pyrazolines. On the other hand, indazolium and isoindazolium salts lead to 3-silylindazolines and occasionally
