1,1-carboboration of 1-alkynes: a conceptual alternative to the hydroboration reaction.
Chen, Chao; Voss, Tanja; Fröhlich, Roland; Kehr, Gerald; Erker, Gerhard; Organic letters 13 (2011) 62–65; doi:10.1021/ol102544x

data_1501862
_publ_section_title
;
 1,1-carboboration of 1-alkynes: a conceptual alternative to the
 hydroboration reaction.
;
_journal_issue                   1
_journal_name_full               'Organic letters'
_journal_page_first              62
_journal_page_last               65
_journal_paper_doi               10.1021/ol102544x
_journal_volume                  13
_journal_year                    2011
_chemical_formula_sum            'C22 H6 B F15 O'
_chemical_formula_weight         582.08
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   14.2119(2)
_cell_length_b                   16.6680(2)
_cell_length_c                   18.1682(3)
_cell_measurement_reflns_used    5507
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      27.88
_cell_measurement_theta_min      4.08
_cell_volume                     4303.75(11)
_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 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Nonius KappaCCD APEXII'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'Montel mirror'
_diffrn_radiation_source         'rotating anode Nonius FR591'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.042
_diffrn_reflns_av_sigmaI/netI    0.0255
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            27869
_diffrn_reflns_theta_full        27.88
_diffrn_reflns_theta_max         27.88
_diffrn_reflns_theta_min         4.09
_exptl_absorpt_coefficient_mu    0.199
_exptl_absorpt_correction_T_max  0.9708
_exptl_absorpt_correction_T_min  0.9248
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Denzo (Otwinowski, Borek,Majewski & Minor, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.797
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             2288
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.234
_refine_diff_density_min         -0.225
_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     387
_refine_ls_number_reflns         5100
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.0741
_refine_ls_R_factor_gt           0.0531
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0381P)^2^+3.3785P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1168
_refine_ls_wR_factor_ref         0.1305
_reflns_number_gt                3838
_reflns_number_total             5100
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol102544x_si_003.cif
_cod_data_source_block           erk5726
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               1501862