Diastereoselective Addition of Zincated Hydrazones to Alkenylboronates and Stereospecific Trapping of Boron/Zinc Bimetallic Intermediates by Carbon Electrophiles
Takuji Hatakeyama; Masaharu Nakamura; Eiichi Nakamura; Journal of the American Chemical Society 130 (2008) 15688–15701; doi:10.1021/ja806258v

data_4108692
_publ_contact_author             'Nakamura, E.'
_publ_contact_author_email       nakamura@chem.s.u-tokyo.ac.jp
_publ_section_title
;
 Diastereoselective Addition of Zincated Hydrazones to Alkenylboronates
 and Stereospecific Trapping of Boron/Zinc Bimetallic Intermediates by
 Carbon Electrophiles
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              15688
_journal_page_last               15701
_journal_paper_doi               10.1021/ja806258v
_journal_volume                  130
_journal_year                    2008
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C18 H35 B1 O3'
_chemical_formula_structural     'C18 H35 B1 O3'
_chemical_formula_sum            'C18 H35 B O3'
_chemical_formula_weight         310.27
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2003-07-02T18:57:01-00:00
_cell_angle_alpha                79.600(5)
_cell_angle_beta                 67.790(5)
_cell_angle_gamma                71.001(5)
_cell_formula_units_Z            2
_cell_length_a                   9.725(5)
_cell_length_b                   10.608(5)
_cell_length_c                   11.225(5)
_cell_measurement_reflns_used    0
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      0
_cell_measurement_theta_min      0
_cell_measurement_wavelength     0.71073
_cell_volume                     1011.5(8)
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.915
_diffrn_measured_fraction_theta_max 0.915
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_unetI/netI     0.0298
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            3544
_diffrn_reflns_theta_full        25.75
_diffrn_reflns_theta_max         25.75
_diffrn_reflns_theta_min         2.36
_exptl_absorpt_coefficient_mu    0.066
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.019
_exptl_crystal_description       prism
_exptl_crystal_F_000             344
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.819
_refine_diff_density_min         -0.424
_refine_diff_density_rms         0.217
_refine_ls_extinction_coef       2.9(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.816
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     200
_refine_ls_number_reflns         3544
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.816
_refine_ls_R_factor_all          0.2049
_refine_ls_R_factor_gt           0.1816
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.441
_refine_ls_wR_factor_ref         0.5057
_reflns_number_gt                2099
_reflns_number_total             3544
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja806258v_si_005.cif
_cod_data_source_block           hydrogenation
_cod_database_code               4108692