Catalytic Enantioselective Diboration of Cyclic Dienes. A Modified Ligand with General Utility
Kai Hong; James P. Morken; Journal of Organic Chemistry 76 (2011) 9102–9108; doi:10.1021/jo201321k

data_4026681
_publ_section_title
;
 Catalytic Enantioselective Diboration of Cyclic Dienes. A Modified Ligand
 with General Utility
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              9102
_journal_page_last               9108
_journal_paper_doi               10.1021/jo201321k
_journal_volume                  76
_journal_year                    2011
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C17 H30 O2'
_chemical_formula_sum            'C17 H30 O2'
_chemical_formula_weight         266.41
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 91.958(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   15.5500(9)
_cell_length_b                   10.1305(6)
_cell_length_c                   20.3828(13)
_cell_measurement_reflns_used    9863
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      66.81
_cell_measurement_theta_min      3.52
_cell_volume                     3209.0(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.974
_diffrn_measured_fraction_theta_max 0.974
_diffrn_measurement_device_type  'Bruker Kappa APEX II DUO CCD diffractometer'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0624
_diffrn_reflns_av_sigmaI/netI    0.0577
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            34058
_diffrn_reflns_theta_full        67.36
_diffrn_reflns_theta_max         67.36
_diffrn_reflns_theta_min         2.17
_diffrn_source                   'microfocus sealed tube'
_diffrn_source_type              'Incoatec I\uS'
_exptl_absorpt_coefficient_mu    0.537
_exptl_absorpt_correction_T_max  0.9788
_exptl_absorpt_correction_T_min  0.8554
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Sheldrick, G.M. (2008). SADABS v2008/1. Bruker AXS Inc. Madison, WI USA.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.103
_exptl_crystal_density_method    none
_exptl_crystal_description       needle
_exptl_crystal_F_000             1184
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.197
_refine_diff_density_min         -0.203
_refine_diff_density_rms         0.041
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00(15)
_refine_ls_extinction_coef       na
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     711
_refine_ls_number_reflns         9423
_refine_ls_number_restraints     9
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0504
_refine_ls_R_factor_gt           0.0441
_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^)+(0.0359P)^2^+1.0839P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1013
_refine_ls_wR_factor_ref         0.1045
_reflns_number_gt                8518
_reflns_number_total             9423
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo201321k_si_005.cif
_cod_data_source_block           C17H30O2
_cod_database_code               4026681