Direct regioselective oxidative cross-coupling of indoles with methyl ketones: a novel route to C3-dicarbonylation of indoles.
Gao, Qinghe; Zhang, Jingjing; Wu, Xia; Liu, Shan; Wu, Anxin; Organic letters 17 (2015) 134–137; doi:10.1021/ol503366r

data_1556257
_publ_section_title
;
 Direct regioselective oxidative cross-coupling of indoles with methyl
 ketones: a novel route to C3-dicarbonylation of indoles.
;
_journal_issue                   1
_journal_name_full               'Organic letters'
_journal_page_first              134
_journal_page_last               137
_journal_paper_doi               10.1021/ol503366r
_journal_volume                  17
_journal_year                    2015
_chemical_formula_sum            'C17 H12 N2 O4'
_chemical_formula_weight         308.29
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'P 1 21/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                 90.579(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.389(3)
_cell_length_b                   7.7940(19)
_cell_length_c                   13.881(3)
_cell_measurement_reflns_used    2473
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      24.79
_cell_measurement_theta_min      2.93
_cell_volume                     1448.5(6)
_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, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0364
_diffrn_reflns_av_sigmaI/netI    0.0328
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            10207
_diffrn_reflns_theta_full        25.49
_diffrn_reflns_theta_max         25.49
_diffrn_reflns_theta_min         1.52
_exptl_absorpt_coefficient_mu    0.103
_exptl_absorpt_correction_T_max  0.9959
_exptl_absorpt_correction_T_min  0.9600
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.414
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             640
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.203
_refine_diff_density_min         -0.152
_refine_diff_density_rms         0.039
_refine_ls_extinction_coef       0.011(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     210
_refine_ls_number_reflns         2688
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0567
_refine_ls_R_factor_gt           0.0398
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0730P)^2^+0.1143P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1124
_refine_ls_wR_factor_ref         0.1252
_reflns_number_gt                2038
_reflns_number_total             2688
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol503366r_si_002.cif
_cod_data_source_block           e:\121114b\work\mo_121114b_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/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      P2(1)/c
_cod_database_code               1556257