Rearrangement of N-(alkylamino)azoles in acid media: a new entry to C-amino-N-substituted azoles
摘要:
A ring-opening/ring-closure mechanism for the thermal rearrangement of 1-(alkylamino)pyrazoles into 5-amino-1-alkylpyrazoles in acid medium has been established. 1-(Benzylamino)pyrazoles show a different reactivity, affording bis(5-amino-1-benzyl-4-pyrazolyl)phenylmethanes. The reaction was extended to 1-(alkylamino)indazoles but failed in the case of 1-(alkylamino)-1,2,4-triazoles.
KATRITZKY, ALAN R.;LAURENZO, KATHLEEN S., J. ORG. CHEM., 53,(1988) N 17, 3978-3982
作者:KATRITZKY, ALAN R.、LAURENZO, KATHLEEN S.
DOI:——
日期:——
Alkylaminonitrobenzenes by vicarious nucleophilic amination with 4-(alkylamino)-1,2,4-triazoles
作者:Alan R. Katritzky、Kathleen S. Laurenzo
DOI:10.1021/jo00252a018
日期:1988.8
Rearrangement of N-(alkylamino)azoles in acid media: a new entry to C-amino-N-substituted azoles
作者:Loreto Salazar、Modesta Espada、Carmen Avendano、Rosa Maria Claramunt、Dionisia Sanz、Jose Elguero
DOI:10.1021/jo00031a042
日期:1992.2
A ring-opening/ring-closure mechanism for the thermal rearrangement of 1-(alkylamino)pyrazoles into 5-amino-1-alkylpyrazoles in acid medium has been established. 1-(Benzylamino)pyrazoles show a different reactivity, affording bis(5-amino-1-benzyl-4-pyrazolyl)phenylmethanes. The reaction was extended to 1-(alkylamino)indazoles but failed in the case of 1-(alkylamino)-1,2,4-triazoles.