Ethyl 5-oxo-3-arylamino-2,5-dihydroisoxazole-4- carboxylates as sources of imidazopyrimidine and aminoindole derivatives
作者:AHMAD POURSATTAR MARJANI、JABBAR KHALAFY
DOI:10.3906/kim-1002-73
日期:——
The reaction of ethyl 5-oxo-3-arylamino-2,5-dihydroisoxazole-4- carboxylates with 2-chloropyrimidine and 2-chlorobenzoxazole gave the corresponding isoxazolones with pyrimidine and benzoxazole rings substituted on N-2. Their rearrangements with triethylamine in ethanol produced the corresponding imidazopyrimidine and aminoindole derivatives, respectively, through intramolecular cyclisation.
Synthesis of Ethyl 2-Arylaminoimidazo[2,1-b]benzothiazole-3-carboxylates
作者:Jabbar Khalafy、Ali Reza Molla Ebrahimlo、Karim Akbari Dilmaghani
DOI:10.1002/jccs.200400196
日期:2004.12
3-Arylamino-4-ethoxycarbonylisoxazol-5(2H)-ones,substitutedonnitrogenwithabenzothiazolegroup, reacts with triethylamine in ethanol under reflux conditions to provide a convenient synthesis of ethyl2-arylaminoimidazo[2,1-b]benzothiazole-3-carboxylates.