Copper-Catalyzed Diastereoselective and Enantioselective Addition of 1,1-Diborylalkanes to Cyclic Ketimines and α-Imino Esters
Kim, Jeongho; Shin, Minkyeong; Cho, Seung Hwan; ACS Catalysis 9 (2019) 8503–; doi:10.1021/acscatal.9b02931

data_4514839
_publ_section_title
;
 Copper-Catalyzed Diastereoselective and Enantioselective Addition of
 1,1-Diborylalkanes to Cyclic Ketimines and \a-Imino Esters
;
_journal_issue                   9
_journal_name_full               'ACS Catalysis'
_journal_page_first              8503
_journal_paper_doi               10.1021/acscatal.9b02931
_journal_volume                  9
_journal_year                    2019
_chemical_absolute_configuration syn
_chemical_formula_sum            'C21 H26 B N O4 S'
_chemical_formula_weight         399.30
_space_group_crystal_system      orthorhombic
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_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
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_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   10.4319(4)
_cell_length_b                   14.2343(5)
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_cell_measurement_reflns_used    9996
_cell_measurement_temperature    173(2)
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_cell_volume                     4335.2(3)
_computing_cell_refinement       'Bruker APEXIII'
_computing_data_collection       'Bruker APEXIII'
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_computing_molecular_graphics    ORTEP
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_diffrn_ambient_temperature      173(2)
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_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Photon 100 CMOS detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_type           MoK\a
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_diffrn_reflns_theta_max         27.000
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_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.175
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_exptl_absorpt_correction_type   multi-scan
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_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.224
_exptl_crystal_description       rod
_exptl_crystal_F_000             1696
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_refine_ls_abs_structure_details
;
 Flack x determined using 2495 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.01(3)
_refine_ls_extinction_method     none
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_refine_ls_R_factor_gt           0.0463
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0435P)^2^+0.9405P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0935
_refine_ls_wR_factor_ref         0.1056
_reflns_Friedel_coverage         0.797
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.998
_reflns_number_gt                6935
_reflns_number_total             9450
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cs9b02931_si_003.cif
_cod_data_source_block           A131O_019
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'MULTI-SCAN' changed to
'multi-scan' according to
/home/data/users/saulius/crontab/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_database_code               4514839
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.936
_shelx_estimated_absorpt_t_max   0.979
_shelx_res_checksum              2025
_shelx_hkl_checksum              93100