Intramolecular Dehydrogenative Coupling of sp(2) C-H and sp(3) C-H Bonds: An Expeditious Route to 2-Oxindoles.
Ghosh, Santanu; De, Subhadip; Kakde, Badrinath N.; Bhunia, Subhajit; Adhikary, Amit; Bisai, Alakesh; Organic letters 14 (2012) 5864–5867; doi:10.1021/ol302767w

data_1508762
_publ_section_title
;
 Intramolecular Dehydrogenative Coupling of sp(2) C-H and sp(3) C-H Bonds:
 An Expeditious Route to 2-Oxindoles.
;
_journal_issue                   23
_journal_name_full               'Organic letters'
_journal_page_first              5864
_journal_page_last               5867
_journal_paper_doi               10.1021/ol302767w
_journal_volume                  14
_journal_year                    2012
_chemical_formula_moiety         'C24 H24 N2 O6'
_chemical_formula_sum            'C24 H24 N2 O6'
_chemical_formula_weight         436.45
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 94.938(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.2477(9)
_cell_length_b                   15.824(2)
_cell_length_c                   16.2391(17)
_cell_measurement_temperature    296(2)
_cell_volume                     2111.5(4)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.967
_diffrn_measured_fraction_theta_max 0.967
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0722
_diffrn_reflns_av_sigmaI/netI    0.0400
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            16893
_diffrn_reflns_theta_full        29.78
_diffrn_reflns_theta_max         29.78
_diffrn_reflns_theta_min         2.52
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_T_max  0.975
_exptl_absorpt_correction_T_min  0.963
_exptl_absorpt_correction_type   'Empirical''Bruker SADABS V2.10'
_exptl_absorpt_process_details   'Bruker SADABS V2.10'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.379
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             912
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.26
_refine_diff_density_max         0.372
_refine_diff_density_min         -0.285
_refine_diff_density_rms         0.065
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.938
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     158
_refine_ls_number_reflns         2935
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.938
_refine_ls_R_factor_all          0.0629
_refine_ls_R_factor_gt           0.0525
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1933
_refine_ls_wR_factor_ref         0.2203
_reflns_number_gt                2415
_reflns_number_total             2935
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol302767w_si_002.cif
_cod_data_source_block           Alakesh
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_original_formula_sum        'C24 H24 N2 O6 '
_cod_database_code               1508762