Rh(III)-catalyzed dual directing group assisted sterically hindered C-H bond activation: a unique route to meta and ortho substituted benzofurans.
Yeh, Chien-Hung; Chen, Wei-Chen; Gandeepan, Parthasarathy; Hong, Ya-Chun; Shih, Cheng-Hung; Cheng, Chien-Hong; Organic & biomolecular chemistry 12 (2014) 9105–9108; doi:10.1039/c4ob01876a

data_7154119
_publ_section_title
;
 Rh(III)-catalyzed dual directing group assisted sterically hindered C-H
 bond activation: a unique route to meta and ortho substituted
 benzofurans.
;
_journal_issue                   45
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              9105
_journal_page_last               9108
_journal_paper_doi               10.1039/c4ob01876a
_journal_volume                  12
_journal_year                    2014
_chemical_formula_sum            'C23 H19 N O3'
_chemical_formula_weight         357.39
_chemical_name_systematic        3aa
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_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                 103.1300(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.2184(5)
_cell_length_b                   11.0939(5)
_cell_length_c                   15.1186(7)
_cell_measurement_reflns_used    4573
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.4120
_cell_measurement_theta_min      2.7548
_cell_volume                     1832.41(14)
_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 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.0289
_diffrn_reflns_av_sigmaI/netI    0.0255
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            14922
_diffrn_reflns_theta_full        26.42
_diffrn_reflns_theta_max         26.42
_diffrn_reflns_theta_min         1.86
_exptl_absorpt_coefficient_mu    0.086
_exptl_absorpt_correction_T_max  0.9486
_exptl_absorpt_correction_T_min  0.8897
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2008/1 (Bruker AXS)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.295
_exptl_crystal_density_meas      ?
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_exptl_crystal_description       Lump
_exptl_crystal_F_000             752
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.26
_refine_diff_density_max         0.576
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_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     246
_refine_ls_number_reflns         3747
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0506
_refine_ls_R_factor_gt           0.0400
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0486P)^2^+0.8975P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0983
_refine_ls_wR_factor_ref         0.1053
_reflns_number_gt                3079
_reflns_number_total             3747
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ob01876a2.cif
_cod_data_source_block           mo_130319lt_0m
_cod_depositor_comments
;Adding full bibliography for 7154119--7154121.cif.

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 3008 2015-01-20 13:52:24Z robertas 
;
_cod_database_code               7154119