A Boron Activating Effect Enables Cobalt-Catalyzed Asymmetric Hydrogenation of Sterically Hindered Alkenes.
Viereck, Peter; Krautwald, Simon; Pabst, Tyler P.; Chirik, Paul J.; Journal of the American Chemical Society 142 (2020) 3923–3930; doi:10.1021/jacs.9b12214

data_4134166
_publ_section_title
;
 A Boron Activating Effect Enables Cobalt-Catalyzed Asymmetric
 Hydrogenation of Sterically Hindered Alkenes.
;
_journal_issue                   8
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              3923
_journal_page_last               3930
_journal_paper_doi               10.1021/jacs.9b12214
_journal_volume                  142
_journal_year                    2020
_chemical_absolute_configuration ad
_chemical_formula_sum            'C23 H32 B2 N2 O2'
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_cell_measurement_theta_min      4.01
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_computing_molecular_graphics    'ORTEP3 (Farraguia, 1994)'
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_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'TWINABS BRUKER AXS'
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_exptl_crystal_description       plate
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_refine_ls_abs_structure_details
;
 Flack x determined using 4832 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.10(10)
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_refine_ls_R_factor_all          0.0483
_refine_ls_R_factor_gt           0.0461
_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^)+(0.0787P)^2^+0.6391P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_number_total             11742
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja9b12214_si_001.cif
_cod_data_source_block           pdv2
_cod_depositor_comments
'Adding full bibliography for 4134166--4134167.cif.'
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4134166
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.823
_shelx_estimated_absorpt_t_max   0.923
_shelx_res_checksum              55133
_shelx_hkl_checksum              40099