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  1. 1601
    “…PdCl(2)-imine/thiophene-FSM-16 exhibited efficient catalytic activity in the synthesis of indeno-1,2,4-triazolo[1,5-a]pyrimidine derivatives via a new three-component reaction between indan-1,3-dione, aromatic aldehydes and 3-amino-1H-1,2,4-triazole in water as the green solvent. …”
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    Synthesis and characterization of thiophene-derived palladium(ii) complex immobilized on FSM-16 and its application in the novel synthesis of 7-(aryl)-7,12-dihydro-6H-indeno[1,2,4]triazolo[1,5-a]pyrimidine-6-one derivatives
  2. 1602
    por Zeng, Guo-ping, Li, Qing, Hu, Yang-gen
    Publicado 2008
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    2-(Dibutyl­amino)-3-(4-fluoro­phen­yl)-5,6,7,8-tetra­hydro-7-methyl-6,8-di­phenyl­pyridine­[3′,4′:2,3]thieno[5,4-d]pyrimidin-4(3H)-one
  3. 1603
    “…In the title compound, [Dy(C(5)H(2.5)N(2)O(4))(2)(C(12)H(8)N(2))(2)]·2H(2)O, the Dy(III) ion is located on a twofold rotation axis and is coordinated in a square-anti­prismatic geometry by two chelating 1,10-phenanthroline mol­ecules as well as two 4-oxido-2-oxo-2,3-di­hydro­pyrimidin-1-ium-5-carboxyl­ato(1.5−) anions. N—H⋯O and O—H⋯O hydrogen bonds help to stabilize the crystal structure. …”
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    Bis[4-oxido-2-oxo-2,3-di­hydro­pyrimidin-1-ium-5-carboxyl­ato(1.5−)-κ(2) O (4),O (5)]bis­(1,10-phenanthroline-κ(2) N,N′)dysprosium(III) dihydrate
  4. 1604
    “…The two independent Mn(II) ions in the polymeric title compound, {[Mn(2)(C(6)H(2)N(2)O(4))(C(10)H(8)N(2))(H(2)O)(6)]SO(4)·3H(2)O}, exhibit distorted MnN(2)O(4) octa­hedral coordination geometries, with the pyrimidine-4,6-dicarboxyl­ate (pmdc) ligand acting in the bis-chelating μ-(κO,κN:κO′,κN′) bridging mode and the 4,4′-bipyridine (bpy) ligand in the μ-(κN:κN′) bridging mode. …”
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    catena-Poly[[[triaqua­manganese(II)]-μ-4,4′-bipyridine-κ(2) N:N′-[triaqua­manganese(II)]-μ-pyrimidine-4,6-dicarboxyl­ato-κ(4) N (1),O (6):N (3),O (4)] sulfate trihydrate]
  5. 1605
    por Nagarajaiah, H., Begum, Noor Shahina
    Publicado 2011
    “…In the title compound, C(24)H(22)N(2)O(6)S, a pyrimidine ring substituted with 4-hy­droxy-3-meth­oxy­phenyl is fused with a thia­zole ring. …”
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    Methyl 5-(4-hy­droxy-3-meth­oxy­phen­yl)-2-(4-meth­oxy­benzyl­idene)-7-methyl-3-oxo-2,3-dihydro-5H-thia­zolo[3,2-a]pyrimidine-6-carboxyl­ate
  6. 1606
    “…In the two independent but very similar mol­ecules (A and B) of the title compound, C(14)H(16)N(2)O(8), both six-membered pyrimidine rings are nearly planar [maximum deviations = 0.010 (3) Å in A and 0.028 (3) Å in B]. …”
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    [(2R,3S,5R)-3-Acet­oxy-5-(5-formyl-2,4-dioxo-1,2,3,4-tetra­hydro­pyrimidin-1-yl)-2,3,4,5-tetra­hydro­furan-2-yl]methyl acetate
  7. 1607
    “…In the title compound, C(20)H(22)N(5)O(+)·Br(−)·C(2)H(6)O, the tetra­hydro­pyrimidine ring of the bicyclic cation adopts a half-chair conformation with an equatorial orientation of the phenyl and methyl substituents. …”
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    2-Amino-5-methyl-3-(2-oxo-2-phenyl­eth­yl)-7-phenyl-4,5,6,7-tetra­hydro-3H-[1,2,4]triazolo[1,5-a]pyrimidin-8-ium bromide ethanol monosolvate
  8. 1608
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    5,5-Di­chloro-6-hy­droxy­dihydro­pyrimidine-2,4(1H,3H)-dione: mol­ecular and crystal structure, Hirshfeld surface analysis and the new route for synthesis with Mg(ReO(4))(2) as a new catalyst
  9. 1609
    “…The title complex, systematic name catena-poly[[[acetato­chlorido­zinc(II)]-μ-(5R,6R,7S)-5-(furan-2-yl)-7-phenyl-4,5,6,7-tetra­hydro­[1,2,4]triazolo[1,5-a]py­rimi­din-6-amine] monohydrate], {[Zn(C(2)H(3)O(2))Cl(C(15)H(15)N(5)O)]·H(2)O}( n ), is the first coordination complex in which the neutral tetra­hydro­triazolo­pyrimidine derivative acts as bridging ligand between two zinc mol­ecules. …”
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    The first coordination complex of (5R,6R,7S)-5-(furan-2-yl)-7-phenyl-4,5,6,7-tetra­hydro-[1,2,4]triazolo[1,5-a]pyrimidin-6-amine with zinc(II) acetate-chloride
  10. 1610
    “…The mol­ecule of the title compound, C(31)H(31)N(3)O(5)S, adopts a folded conformation, with the sulfonyl-bound phenyl ring lying over the pyrimidine ring [dihedral angle = 12.04 (6)° and centroid–centroid separation = 3.6986 (8) Å]. …”
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    1-Benzyl-6,8-dimethyl-4-phenyl-2-tosyl-1,2,3,3a,4,6,7,8,9,9b-deca­hydro­pyrrolo[3,4-c]pyrano[6,5-d]pyrimidine-7,9-dione
  11. 1611
    por Dong, Hua-Ze, Chu, Zhao-Lian
    Publicado 2011
    “…The metal atoms are bridged by 1,2-bis­[4-(pyridin-3-yl)pyrimidin-2-ylsulfan­yl]ethane ligands, giving a polymeric chain extending along the b axis. …”
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    catena-Poly[[[(acetato-κ(2) O,O′)cadmium]-μ-acetato-κ(3) O,O′:O′-μ-{1,2-bis­[4-(pyridin-3-yl)pyrimidin-2-ylsulfan­yl]ethane}-κ(2) N (4),N (4′)] trihydrate]
  12. 1612
    por Sureshbabu, N., Sughanya, V.
    Publicado 2013
    “…The dihedral angle between the mean planes of the pyrimidine­dione and cyclo­hexenone rings is 58.78 (2)°. …”
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    6-Hy­droxy-5-[(2-hy­droxy-4,4-dimethyl-6-oxo­cyclo­hex-1-en­yl)(4-nitro­phen­yl)meth­yl]-1,3-di­methyl­pyrimidine-2,4(1H,3H)-dione
  13. 1613
    “…In the title mol­ecule, C(23)H(18)F(2)N(2)O(3)S, the 4-fluoro-substituted and 2-fluoro-substituted benzene rings form dihedral angles of 88.16 (8) and 23.1 (1)°, respectively, with the thia­zole ring. The pyrimidine ring adopts a flattened sofa conformation with the sp (3)-hydridized C atom forming the flap. …”
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    Crystal structure of ethyl 2-(2-fluoro­benzyl­idene)-5-(4-fluoro­phen­yl)-7-methyl-3-oxo-2,3-di­hydro-5H-1,3-thia­zolo[3,2-a]pyrimidine-6-carb­oxy­late
  14. 1614
    “…This work identifies optimized reaction conditions to access either the pyrazolo[3,4-β]pyridine or the pyrazolo[1,5-α]pyrimidine scaffold. This has led to the structural confirmation of the previously reported pyrazolopyrimidine 17b which was reported as pyrazolo[1,5-α]pyrimidine structure 2 which was corrected to pyrazolo[3,4-β]-pyrimidine 19.…”
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    Synthetic studies towards isomeric pyrazolopyrimidines as potential ATP synthesis inhibitors of Mycobacterium tuberculosis. Structural correction of reported N-(6-(2-(dimethylamino)ethoxy)-5-fluoropyridin-3-yl)-2-(4-fluorophenyl)-5-(trifluoromethyl)pyrazolo[1,5-α]pyrimidin-7-amine
  15. 1615
    “…The asymmetric unit of the title compound, 2C(14)H(18)N(5)O(3) (+)·C(10)H(5)O(8) (2−)·8H(2)O, contains one [H(2)ppa](+)cation, one half of an [H(2)btec](2−) anion (H(4)btec = 1,2,4,5-benzene­tetra­carb­oxy­lic acid and Hppa = 8-ethyl-5-oxo-2-piperazin-1-yl-5,8-dihydro­pyrido[2,3-d]pyrimidine-6-carb­oxy­lic acid) that is completed by inversion symmetry and four water mol­ecules. …”
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    Bis[8-ethyl-5-oxo-2-(piperazin-4-ium-1-yl)-5,8-dihydro­pyrido[2,3-d]pyrimidine-6-carb­oxy­lic acid] 2,5-dicarb­oxy­benzene-1,4-di­carboxyl­ate octa­hydrate
  16. 1616
    “…In the cation of the title complex, [Ru(C(31)H(32)N(3)P(2))(C(10)H(8)N(2))(2)](PF(6))(Br)(2)·2CH(2)Cl(2)·H(2)O, the ruthenium ion is coordinated in a distorted octa­hedral geometry by two 2,2′-bi­pyridine (bpy) ligands and a chelating cationic N-di­phenyl­phosphino-1,3,4,6,7,8-hexa­hydro-2-pyrimido[1,2-a]pyrimidine [(PPh(2))(2)-hpp] ligand. The tricationic charge of the complex is balanced by two bromide and one hexa­fluorido­phosphate counter-anions. …”
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    Bis(2,2′-bipyridine)[1,9-bis(diphenylphos­phanyl)-1,2,3,4,6,7,8,9-octahydropyrim­ido[1,2-a]pyrimidin-5-ium]ruthenium(II) hexa­fluorido­phosphate dibromide di­chloro­methane disolvate monohydrate
  17. 1617
    “…In the title mol­ecule, C(23)H(18)F(2)N(2)O(3)S, the pyrimidine ring is in a half-chair conformation and the 3-fluoro­phenyl group is in the axial position. …”
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    Crystal structure of ethyl 5-(3-fluoro­phen­yl)-2-[(4-fluoro­phen­yl)methyl­idene]-7-methyl-3-oxo-2H,3H,5H-[1,3]thia­zolo[3,2-a]pyrimidine-6-carboxyl­ate
  18. 1618
    “…In the title compound, C(25)H(14)F(3)N(3)O(3), the dihedral angle between the planes of the benz[4,5]imidazo[1,2-a]pyrimidine unit (r.m.s. deviation = 0.035 Å) and the benzochromene ring system (r.m.s. deviation = 0.106 Å) is 72.82 (5)°. …”
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    Crystal structure of 10-[(3-oxo-3H-benzo[f]chromen-1-yl)meth­yl]-2-tri­fluoro­methyl-9a,10-di­hydro­benz[4,5]imidazo[1,2-a]pyrimidin-4(5aH)-one
  19. 1619
    por Lundberg, Daniel, Lyczko, Krzysztof
    Publicado 2015
    “…The structure of the title compound, [Al(2)(OH)(2)(C(6)H(12)N(2)O)(6)]I(4)·4C(6)H(12)N(2)O (systematic name: di-μ(2)-hydroxido-bis­{tris­[1,3-di­methyl­tetra­hydro­pyrimidin-2(1H)-one-κO]aluminium} tetra­iodide 1,3-di­methyl­tetra­hydro­pyrimidin-2(1H)-one tetra­solvate), is composed of two Al(C(6)H(12)N(2)O)(3) moieties linked into a centrosymmetric dinuclear unit by a pair of bridging hydroxide ions. …”
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    Crystal structure of hexa­kis­(dmpu)-di-μ(2)-hydroxido-dialuminium tetraiodide dmpu tetra­solvate [dmpu is 1,3-di­methyl­tetra­hydro­pyrimidin-2(1H)-one]: a centrosymmetric dinuclear aluminium complex containing AlO(5) polyhedra
  20. 1620
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    Crystal structure of aceto­nitrile­[η(6)-1-methyl-4-(1-methyl­eth­yl)benzene][1-(pyrimidin-2-yl)-3H-indol-1-ium-2-yl-κ(2) N,C]ruthenium(II) bis­(hexa­fluorido­anti­monate)
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