Silica gel-promoted practical synthesis of oxindole–nitrones from diazooxindoles and nitrosoarenes under solvent-free conditions
Zhang, Yun-Hao; Wu, Ming-Yue; Huang, Wen-Cai; RSC Adv. 5 (2015) 105825–; doi:10.1039/C5RA21874H

data_7223474
_publ_section_title
;
 Silica gel-promoted practical synthesis of oxindole--nitrones from
 diazooxindoles and nitrosoarenes under solvent-free conditions
;
_journal_issue                   128
_journal_name_full               'RSC Adv.'
_journal_page_first              105825
_journal_paper_doi               10.1039/C5RA21874H
_journal_volume                  5
_journal_year                    2015
_chemical_formula_moiety         'C16 H11 N3 O2'
_chemical_formula_sum            'C16 H11 N3 O2'
_chemical_formula_weight         277.28
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_update_record
;
2014-07-31 deposited with the CCDC.
2015-12-01 downloaded from the CCDC.
;
_cell_angle_alpha                81.83(4)
_cell_angle_beta                 85.86(4)
_cell_angle_gamma                82.76(3)
_cell_formula_units_Z            2
_cell_length_a                   7.012(4)
_cell_length_b                   7.844(4)
_cell_length_c                   12.691(8)
_cell_measurement_reflns_used    701
_cell_measurement_temperature    293
_cell_measurement_theta_max      67.50
_cell_measurement_theta_min      23.20
_cell_volume                     684.4(7)
_computing_cell_refinement       'CrystalClear-SM Expert 2.0 r4'
_computing_data_collection       'CrystalClear-SM Expert 2.0 r4 (Rigaku, 2009)'
_computing_data_reduction        'CrystalClear-SM Expert 2.0 r4'
_computing_molecular_graphics    'CrystalStructure 4.0'
_computing_publication_material  'CrystalStructure 4.0 (Rigaku, 2009)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293
_diffrn_measured_fraction_theta_full 0.972
_diffrn_measured_fraction_theta_max 0.972
_diffrn_measurement_device_type  'Rigaku Saturn70 CCD'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54187
_diffrn_reflns_av_R_equivalents  0.1175
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            20880
_diffrn_reflns_theta_full        68.08
_diffrn_reflns_theta_max         68.08
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.753
_exptl_absorpt_correction_T_max  0.860
_exptl_absorpt_correction_T_min  0.564
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.345
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             288.00
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.350
_refine_diff_density_min         -0.640
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   2.220
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     190
_refine_ls_number_reflns         2435
_refine_ls_number_restraints     0
_refine_ls_R_factor_gt           0.1344
_refine_ls_shift/su_max          0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.3650
_reflns_number_gt                1530
_reflns_number_total             2435
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            c5ra21874h2.cif
_cod_data_source_block           '__tanbin-140718-N3O2-1'
_cod_database_code               7223474