Abstract Structurally diverse fused polycyclic pyrrolo[3,2- c ]quinolinone/pyrrolizino[2,3- ]quinolinone hybrids were synthesized to get excellent yields via a tandem multi-component reaction sequence employing an environmentally benign solid state melt involving [3+2]-cycloaddition process followed by two consecutive annulation steps. Baylis–Hillman products, used as dipolarophiles, from vario...

Heterocyclic compounds containing a pyrimidine nucleus are of special interests due to their applications in medicinal chemistry as they are the basic skeleton of several bioactive compounds such as antifungal, antibacterial, antitumor and antitubercular. As a part of our research in the synthesis of pyrimidine derivatives containing biological activities, some new tetrahydropyrimidine derivati...

Steady-state irradiation in neat acetonitrile of some aromatic nitriles, imides and esters (10(-5)-10(-3) M solution) in the presence of tertiary amines allowed the accumulation of the corresponding radical anions, up to quantitative yield for polysubstituted benzenes and partially with naphthalene and anthracene derivatives. The condition for such an accumulation was that the donor radical cat...

New metalloporphyrins bearing one or two aryl-aza-crown ether moieties at meso-positions have been synthesized using a palladium catalyzed amination reaction and fully characterized by spectral techniques. X-Ray structural data have been presented for the zinc and copper complexes of mono-substituted aza-crown ether appended metalloporphyrins. UV-Vis and (1)H NMR spectroscopic studies showed th...

A Lewis base-Brønsted acid co-catalyzed Morita-Baylis-Hillman reaction of cyclic sulfamidate imines with acrylate-type Michael acceptors has been developed. The combination equimolecular catalytic amounts DABCO and acetic proved highly efficient tolerated well a wide range substituted 6-membered ring imines, as sultam derivative. provides straightforward access to sulfamidates bearing ?,?-unsat...

Three distinct four-component supramolecular nanorotors were prepared, using, for the first time, bipyridine instead of phenanthroline stations in stator. Following our established self-sorting protocol to multicomponent nanodevices, self-assembled by mixing stator, rotators with various pyridine head groups, copper(I) ions and 1,4-diazabicyclo[2.2.2]octane (DABCO). Whereas exchange a vs. stati...