Iridium-catalyzed C-H borylation of pyridines.
Sadler, Scott A.; Tajuddin, Hazmi; Mkhalid, Ibraheem A. I.; Batsanov, Andrei S.; Albesa-Jove, David; Cheung, Man Sing; Maxwell, Aoife C.; Shukla, Lena; Roberts, Bryan; Blakemore, David C.; Lin, Zhenyang; Marder, Todd B.; Steel, Patrick G.; Organic & biomolecular chemistry 12 (2014) 7318–7327; doi:10.1039/c4ob01565g

data_7154052
_publ_section_title
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 Iridium-catalyzed C-H borylation of pyridines.
;
_journal_issue                   37
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              7318
_journal_page_last               7327
_journal_paper_doi               10.1039/c4ob01565g
_journal_volume                  12
_journal_year                    2014
_chemical_formula_moiety         'C11 H14 B Cl2 N O2'
_chemical_formula_sum            'C11 H14 B Cl2 N O2'
_chemical_formula_weight         273.94
_chemical_melting_point          322
_chemical_name_common            2,3-Dichloro-5-(Bpin)-pyridine
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2014-02-24
_audit_creation_method
;
Olex2 1.2-alpha
(compiled 2014.02.17 svn.r2891 for OlexSys, GUI svn.r4773)
;
_cell_angle_alpha                90
_cell_angle_beta                 93.137(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.5381(4)
_cell_length_b                   21.3579(12)
_cell_length_c                   9.4192(5)
_cell_measurement_reflns_used    974
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      30.11
_cell_measurement_theta_min      2.88
_cell_volume                     1313.33(13)
_computing_cell_refinement       'SMART V5.625 (Bruker, 2001)'
_computing_data_collection       'SMART V5.625 (Bruker, 2001)'
_computing_data_reduction        'SAINT V6.45 (Bruker, 2001)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2008)'
_diffrn_ambient_temperature      120.15
_diffrn_detector_area_resol_mean 5.6
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'SMART 6000 CCD area detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0285
_diffrn_reflns_av_unetI/netI     0.0227
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            18635
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        30.000
_diffrn_reflns_theta_max         30.504
_diffrn_reflns_theta_min         2.366
_exptl_absorpt_coefficient_mu    0.482
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.385
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rhombohedron
_exptl_crystal_F_000             568
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.359
_refine_diff_density_min         -0.170
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.055
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     162
_refine_ls_number_reflns         4008
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_all          0.0411
_refine_ls_R_factor_gt           0.0313
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0412P)^2^+0.2801P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0782
_refine_ls_wR_factor_ref         0.0826
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3283
_reflns_number_total             4008
_reflns_threshold_expression     'I > 2\s(I)'
_cod_duplicate_entry             7153977
_cod_data_source_file            c4ob01565g2.cif
_cod_data_source_block           39e
_cod_database_code               7154052
_shelxl_version_number           2014-1
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2. Others
 Uiso(H8A)=Uiso(H8B)=Uiso(H8C)=FVAR(1)
 Uiso(H9A)=Uiso(H9B)=Uiso(H9C)=FVAR(2)
 Uiso(H10A)=Uiso(H10B)=Uiso(H10C)=FVAR(3)
 Uiso(H11A)=Uiso(H11B)=Uiso(H11C)=FVAR(4)
3.a Aromatic/amide H refined with riding coordinates:
 C3(H3), C5(H5)
3.b Idealised Me refined as rotating group:
 C8(H8A,H8B,H8C), C9(H9A,H9B,H9C), C10(H10A,H10B,H10C), C11(H11A,H11B,H11C)
;
_olex2_computing_structure_refinement_long 'ShelXL (Sheldrick, 2008)'