Modification and Unexpected Reactivity of 2-Borylbenzaldimines: Acylated and Silylated Derivatives as Well as Dimeric Compounds
Benedikt Neue; Atsushi Wakamiya; Roland Fröhlich; Birgit Wibbeling; Shigehiro Yamaguchi; Ernst-Ulrich Würthwein; Journal of Organic Chemistry 78 (2013) 11747–11755; doi:10.1021/jo401748d

data_4028779
_publ_section_title
;
 Modification and Unexpected Reactivity of 2-Borylbenzaldimines: Acylated
 and Silylated Derivatives as Well as Dimeric Compounds
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              11747
_journal_page_last               11755
_journal_paper_doi               10.1021/jo401748d
_journal_volume                  78
_journal_year                    2013
_chemical_formula_sum            'C28 H32 B N'
_chemical_formula_weight         393.36
_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                 103.057(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.6193(3)
_cell_length_b                   26.8803(11)
_cell_length_c                   11.6850(6)
_cell_measurement_reflns_used    4289
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      68.25
_cell_measurement_theta_min      0.88
_cell_volume                     2637.3(2)
_computing_cell_refinement       'Collect (Nonius B.V., 1998)'
_computing_data_collection       'Collect (Nonius B.V., 1998)'
_computing_data_reduction        'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'XP (BrukerAXS, 2000)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 0.949
_diffrn_measured_fraction_theta_max 0.949
_diffrn_measurement_device_type  'Nonius KappaCCD APEXII'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.066
_diffrn_reflns_av_sigmaI/netI    0.0367
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       31
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            22640
_diffrn_reflns_theta_full        67.43
_diffrn_reflns_theta_max         67.43
_diffrn_reflns_theta_min         4.22
_exptl_absorpt_coefficient_mu    0.417
_exptl_absorpt_correction_T_max  0.9876
_exptl_absorpt_correction_T_min  0.9028
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Denzo (Otwinowski, Borek, Majewski & Minor, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    0.991
_exptl_crystal_description       plate
_exptl_crystal_F_000             848
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.168
_refine_diff_density_min         -0.190
_refine_diff_density_rms         0.039
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.060
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     277
_refine_ls_number_reflns         4505
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.0792
_refine_ls_R_factor_gt           0.0556
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0794P)^2^+0.5339P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1428
_refine_ls_wR_factor_ref         0.1561
_reflns_number_gt                3223
_reflns_number_total             4505
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo401748d_si_001_5.cif
_cod_data_source_block           wue5422
_cod_database_code               4028779