Re/Mg Bimetallic Tandem Catalysis for [4+2] Annulation of Benzamides and Alkynes via C-H/N-H Functionalization
Qiuzheng Tang; Dexin Xia; Xiqing Jin; Qing Zhang; Xiao-Qiang Sun; Congyang Wang; Journal of the American Chemical Society 135 (2013) 4628–4631; doi:10.1021/ja400020e

data_4119500
_publ_section_title
;
 Re/Mg Bimetallic Tandem Catalysis for [4+2] Annulation of Benzamides and
 Alkynes via C-H/N-H Functionalization
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              4628
_journal_page_last               4631
_journal_paper_doi               10.1021/ja400020e
_journal_volume                  135
_journal_year                    2013
_chemical_formula_moiety         'C22 H18 I N O'
_chemical_formula_sum            'C22 H18 I N O'
_chemical_formula_weight         439.27
_space_group_IT_number           13
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yc'
_symmetry_space_group_name_H-M   'P 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                 114.72(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.564(3)
_cell_length_b                   7.2675(15)
_cell_length_c                   16.904(3)
_cell_measurement_reflns_used    5661
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.4844
_cell_measurement_theta_min      1.3534
_cell_volume                     1848.4(8)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_computing_molecular_graphics
;
 Mercury: visualization and analysis of crystal structures, C. F. Macrae,
 P. R. Edgington, P. McCabe, E. Pidcock, G. P. Shields, R. Taylor,
 M. Towler and J. van de Streek, J. Appl. Cryst., 39, 453-457, 2006.
;
_computing_publication_material  'SHELX-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELX-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELX-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'MM007HF + CCD (Saturn724+)'
_diffrn_measurement_method       '\w scans at fixed \c = 45\%'
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_source         'Rotating Anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0397
_diffrn_reflns_av_sigmaI/netI    0.0348
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            12456
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.42
_exptl_absorpt_coefficient_mu    1.741
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.6693
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrystalClear (Rigaku Inc., 2008)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.578
_exptl_crystal_description       block
_exptl_crystal_F_000             872
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.15
_refine_diff_density_max         1.706
_refine_diff_density_min         -0.622
_refine_diff_density_rms         0.106
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.118
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     227
_refine_ls_number_reflns         4197
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.118
_refine_ls_R_factor_all          0.0618
_refine_ls_R_factor_gt           0.0596
_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^)+(0.0364P)^2^+8.6772P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1302
_refine_ls_wR_factor_ref         0.1315
_reflns_number_gt                4032
_reflns_number_total             4197
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja400020e_si_003.cif
_cod_data_source_block           a
_cod_original_cell_volume        1848.4(6)
_cod_database_code               4119500