Brønsted acidic ionic liquid catalyzed tandem reaction of 4-hydroxy-1-methyl-2-quinolone with chalcone: regioselective synthesis of pyrano[3,2-c]quinolin-2-ones
Bagdi, Avik Kumar; Hajra, Alakananda; RSC Adv. 4 (2014) 23287–; doi:10.1039/C4RA03221G

data_7235687
_publ_section_title
;
 Br\/onsted acidic ionic liquid catalyzed tandem reaction of
 4-hydroxy-1-methyl-2-quinolone with chalcone: regioselective synthesis of
 pyrano[3,2-c]quinolin-2-ones
;
_journal_issue                   44
_journal_name_full               'RSC Adv.'
_journal_page_first              23287
_journal_paper_doi               10.1039/C4RA03221G
_journal_volume                  4
_journal_year                    2014
_chemical_formula_sum            'C26 H19 N O4'
_chemical_formula_weight         409.42
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                110.467(3)
_cell_angle_beta                 92.997(3)
_cell_angle_gamma                96.593(3)
_cell_formula_units_Z            2
_cell_length_a                   7.6235(9)
_cell_length_b                   10.5395(12)
_cell_length_c                   13.1263(16)
_cell_measurement_reflns_used    1142
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      23.15
_cell_measurement_theta_min      2.70
_cell_volume                     976.7(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.974
_diffrn_measured_fraction_theta_max 0.974
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0276
_diffrn_reflns_av_sigmaI/netI    0.0386
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            5942
_diffrn_reflns_theta_full        23.39
_diffrn_reflns_theta_max         23.39
_diffrn_reflns_theta_min         1.66
_exptl_absorpt_coefficient_mu    0.094
_exptl_absorpt_correction_T_max  0.9888
_exptl_absorpt_correction_T_min  0.9832
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS(Sheldrick, 2008)'
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.392
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cubic
_exptl_crystal_F_000             428
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.139
_refine_diff_density_min         -0.216
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     281
_refine_ls_number_reflns         2780
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0603
_refine_ls_R_factor_gt           0.0464
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0751P)^2^+0.0620P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1220
_refine_ls_wR_factor_ref         0.1346
_reflns_number_gt                2162
_reflns_number_total             2780
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ra03221g2.cif
_cod_data_source_block           sss
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Triclinic' was changed to
'triclinic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/RSC/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      'P-1   '
_cod_database_code               7235687