Regioselective Synthesis of Imidazo[1,5-a]quinoxalines and Methyl N-Phenylbenzimidats on Ionic Liquid Support
Chen, Li-Hsun; Kao, Chih-Hsien; DHOLE, SANDIP; Barve, Indrajeet; Shen, Li-Ching; Chung, Wen-Sheng; Sun, Chung-Ming; RSC Adv.  (2016) –; doi:10.1039/C6RA11861E

data_7226177
_publ_section_title
;
 Regioselective Synthesis of Imidazo[1,5-a]quinoxalines and Methyl
 N-Phenylbenzimidats on Ionic Liquid Support
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C6RA11861E
_journal_year                    2016
_chemical_formula_sum            'C19 H17 N3 O3'
_chemical_formula_weight         335.36
_chemical_name_systematic
'methyl (Z)-4-(1H-imidazol-1-yl)-3-((methoxy(phenyl)methylene)amino)benzoate'
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2016-01-04 deposited with the CCDC.
2016-08-01 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 101.378(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.587(2)
_cell_length_b                   10.3387(17)
_cell_length_c                   14.091(2)
_cell_measurement_reflns_used    3937
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.2291
_cell_measurement_theta_min      2.4606
_cell_volume                     1654.8(5)
_computing_cell_refinement       'SAINT V7.68A (Bruker AXS, 2009)'
_computing_data_collection       'APEX2 (Bruker AXS, 2010)'
_computing_data_reduction        'SAINT V7.68A (Bruker AXS, 2009)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_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  0.0555
_diffrn_reflns_av_sigmaI/netI    0.0585
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            11817
_diffrn_reflns_theta_full        26.52
_diffrn_reflns_theta_max         26.52
_diffrn_reflns_theta_min         2.08
_exptl_absorpt_coefficient_mu    0.093
_exptl_absorpt_correction_T_max  0.9486
_exptl_absorpt_correction_T_min  0.6285
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2008/1 (Bruker AXS)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.346
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Lump
_exptl_crystal_F_000             704
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.348
_refine_diff_density_min         -0.319
_refine_diff_density_rms         0.070
_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     228
_refine_ls_number_reflns         3378
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0618
_refine_ls_R_factor_gt           0.0434
_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^)+(0.0581P)^2^+0.1909P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1087
_refine_ls_wR_factor_ref         0.1192
_reflns_number_gt                2535
_reflns_number_total             3378
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6ra11861e2.cif
_cod_data_source_block           mo_120626lt_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 4268 2015-11-12 08:31:59Z antanas 
;
_cod_original_cell_volume        1654.9(5)
_cod_database_code               7226177