Iridium-Catalyzed [2 + 2 + 2] Cycloaddition of α,ω-Diynes with Nitriles
Gen Onodera; Yoshihisa Shimizu; Jun-na Kimura; Junya Kobayashi; Yukiko Ebihara; Kei Kondo; Ken Sakata; Ryo Takeuchi; Journal of the American Chemical Society 134 (2012) 10515–10531; doi:10.1021/ja3028394

data_4118118
_publ_section_title
;
 Iridium-Catalyzed [2 + 2 + 2] Cycloaddition of \a,\w-Diynes with Nitriles
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10515
_journal_page_last               10531
_journal_paper_doi               10.1021/ja3028394
_journal_volume                  134
_journal_year                    2012
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C22 H25 N O4'
_chemical_formula_sum            'C22 H25 N O4'
_chemical_formula_weight         367.44
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      19
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.0000
_cell_angle_beta                 90.0000
_cell_angle_gamma                90.0000
_cell_formula_units_Z            4
_cell_length_a                   9.1978(2)
_cell_length_b                   13.4682(3)
_cell_length_c                   15.3589(3)
_cell_measurement_reflns_used    11650
_cell_measurement_temperature    293
_cell_measurement_theta_max      68.20
_cell_measurement_theta_min      3.28
_cell_volume                     1902.63(7)
_computing_cell_refinement       'RAPID AUTO'
_computing_data_collection       'RAPID AUTO (Rigaku, ????)'
_computing_data_reduction        'RAPID AUTO'
_computing_molecular_graphics    'CrystalStructure 4.0'
_computing_publication_material  'CrystalStructure 4.0 (Rigaku, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'Il Milione (Burla, et al., 2007)'
_diffrn_ambient_temperature      293
_diffrn_detector_area_resol_mean 10.000
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Rigaku R-AXIS RAPID II'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54187
_diffrn_reflns_av_R_equivalents  0.0417
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            13455
_diffrn_reflns_theta_full        68.20
_diffrn_reflns_theta_max         68.20
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.713
_exptl_absorpt_correction_T_max  0.899
_exptl_absorpt_correction_T_min  0.811
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSCOR (Rigaku, 1995)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.283
_exptl_crystal_description       block
_exptl_crystal_F_000             784.00
_exptl_crystal_size_max          0.250
_exptl_crystal_size_mid          0.150
_exptl_crystal_size_min          0.150
_refine_diff_density_max         0.220
_refine_diff_density_min         -0.360
_refine_ls_abs_structure_details
'Flack, H. D. (1983), Acta Cryst. A39, 876-881.  1357 Friedel Pairs'
_refine_ls_abs_structure_Flack   0.01(18)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.085
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     250
_refine_ls_number_reflns         3340
_refine_ls_number_restraints     0
_refine_ls_R_factor_gt           0.0370
_refine_ls_shift/su_max          0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0670P)^2^+0.4192P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.0978
_reflns_number_gt                3313
_reflns_number_total             3340
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            ja3028394_si_004.cif
_cod_data_source_block           Chiral-Py_(sc0891)
_cod_original_cell_volume        1902.62(7)
_cod_database_code               4118118