Condensation of o-phenylenediamine with isatine in refluxing glacial acetic acid gives indolo[2,3-b] quinoxaline. This moiety further condensed with n’-(n-Halo aloxy)-3,4-dihydro carbostyril in refluxing acetonitrile using NaI,K2CO3 and TBAB as catalyst gave us desire product. Series of all six analogs are taken for their antibacterial and antipsychotic activity. The entire tested compound show...

The asymmetric unit of the title compound, 2C(8)H(6)N(2)·C(6)H(7)NO·2H(2)O, contains two quinoxaline mol-ecules, one mol-ecule of 3-amino-phenol and two water mol-ecules which are hydrogen bonded to form a two-dimensional polymeric structure. Each of the symmetry-independent quinoxaline mol-ecules forms separate stacks of different symmetry. In one set of stacks, the mol-ecules are related by a...

The unexpected substitution of fluorine atoms and phenoxy groups attached to quinoxaline or benzofuroxan rings is described. The synthesis of 2-benzyl- and 2-phenoxy-3-methylquinoxaline 1,4-di-N-oxide derivatives was based on the classical Beirut reaction. The tendency of fluorine atoms linked to quinoxaline or benzofuroxan rings to be replaced by a methoxy group when dissolved in an ammonia sa...

in this work, the efficiency, generality and applicability of new bronsted acidic ionic liquid (bail) 1-methyl-3-(2-(sulfooxy)ethyl)-1h-imidazol-3-ium chloride {[msei]cl} as heterogeneous and green catalyst for organic transformations are studied. herein, the following one-pot multi-component reactions in the presence of [msei]cl are investigated: (i) the synthesis of quinoxaline derivatives fr...

In the title compound, C(22)H(13)ClN(2), the quinoxaline ring system is close to planar [maximum deviation = 0.061 (2) Å]. The phenyl ring at the 2-position and the phenyl ring of the phenyl-ethynyl substituent make dihedral angles of 49.32 (7) and 11.99 (7) °, respectively, with the quinoxaline mean plane. The two phenyl rings are inclined to one another by 61.27 (9)°. In the crystal, mol-ecul...