01514nas a2200277 4500008004100000022001400041245015400055210006900209260000800278300001400286490000600300520045800306653000600764653003100770653001400801653007000815653004300885653001900928100002700947700002400974700003200998700002501030700002401055700002601079856013101105 2017 eng d a2365-654900aFacile one-pot multi-component synthesis of spirooxindoles and 3, 3 `-disubstituted oxindoles via sp(3) C-H activation/functionalization of azaarenes0 aFacile onepot multicomponent synthesis of spirooxindoles and 3 3 cSEP a9147-91520 v23 a

A novel one-pot multicomponent reaction (MCR) protocol has been demonstrated for the first time for sustainable and facile synthesis of spirooxindoles and 3, 3 `-disubstituted oxindoles in an excellent yield via sp(3) C-H activation/functionalization of 2-methyl azaarenes and (2-azaaryl)methanes with isatin, active methylene compounds using eco-friendly heterogeneous, reusable silica-supported dodecatungstophosphoric acid (DTP/SiO2) catalyst.

10a310a3'-disubstituted oxindoles10aazaarenes10asilica-supported dodecatungstophosphoric acid (DTP/SiO2) catalyst10asp(3) C-H activation/functionalization10aspirooxindoles1 aPathan, Mohsinkhan, Y.1 aChavan, Santosh, S.1 aShaikh, Taufeekaslam, M. Y.1 aThorat, Shridhar, H.1 aGonnade, Rajesh, G.1 aMulla, Shafeek, A. R. uhttps://library.ncl.res.in/content/facile-one-pot-multi-component-synthesis-spirooxindoles-and-3-3-disubstituted-oxindoles-sp308872nas a2200229 4500008004100000245014300041210006900184260000800253300001200261490000700273520796300280653000608243653007708249653004808326100002308374700002508397700002408422700002308446700002408469700002108493856012808514 2022 eng d00aSynthesis, crystal structure and Hirshfeld surface analysis of a zinc(II) coordination polymer of 5-phenyl-1,3,4-oxa­diazole-2-thiol­ate0 aSynthesis crystal structure and Hirshfeld surface analysis of a  cAUG a794-7970 v873 a

A new zinc coordination polymer with 5-phenyl-1,3,4-oxa­diazole-2-thiol­ate, namely, catena-poly[zinc(II)-bis­(μ2-5-phenyl-1,3,4-oxa­diazole-2-thiol­ato)-κ2N3:S;κ2S:N3], [Zn(C8H5N2OS)2]n, was synthesized. The single-crystal X-ray diffraction analysis shows that the polymeric structure crystallizes in the centrosymmetric monoclinic C2/c space group. The ZnII atom is coordinated to two S and two N atoms from four crystallographically independent (L) ligands, forming zigzag chains along the [001] direction. This polymer complex forms an eight-membered [Zn–S–C–N–Zn–S–C–N] chair-like ring with two ZnII atoms and two ligand mol­ecules. On the Hirshfeld surface, the largest contributions come from the short contacts such as van der Waals forces, including H⋯H, C⋯H and S⋯H. Inter­actions including N⋯H, O⋯H and C⋯C contacts were also observed; however, their contribution to the overall stability of the crystal lattice is minor.

10a310a4-oxa­diazole-2-thiol; coordination polymer; Hirshfeld surface analysis10acrystal structure; zinc complex; 5-phenyl-11 aPirimova, Mehribon1 aTorambetov, Batirbay1 aKadirova, Shakhnoza1 aZiyaev, Abdukhakim1 aGonnade, Rajesh, G.1 aAshurov, Jamshid uhttps://library.ncl.res.in/content/synthesis-crystal-structure-and-hirshfeld-surface-analysis-zincii-coordination-polymer-5