Ligand's electronegativity controls the sense of enantioselectivity in BIFOP-X palladium-catalyzed allylic alkylations
Brüllingen, Eric; Neudörfl, Jörg-Martin; Goldfuss, Bernd; New Journal of Chemistry 43 (2019) 15743–; doi:10.1039/C9NJ02798J

data_7058968
_publ_section_title
;
 Ligand's electronegativity controls the sense of enantioselectivity in
 BIFOP-X palladium-catalyzed allylic alkylations
;
_journal_issue                   39
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              15743
_journal_paper_doi               10.1039/C9NJ02798J
_journal_volume                  43
_journal_year                    2019
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C20 H20 N2 O4'
_chemical_formula_sum            'C34 H42 N0 O2'
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_space_group_crystal_system      monoclinic
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_audit_update_record
;
2018-12-20 deposited with the CCDC.	2019-09-09 downloaded from the CCDC.
;
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_cell_measurement_temperature    100(2)
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_cell_volume                     1409.31(11)
_computing_cell_refinement       'Bruker APEX 3'
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_computing_molecular_graphics    'SCHAKAL99 (E. Keller 1999)'
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;
SHELXL-2014/7 (Sheldrick, 2014)
SHELXLE (C. B. Huebschle 2016)'
;
_computing_structure_solution    'SHELXT  (Sheldrick, 2015)'
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_diffrn_radiation_type           CuK\a
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_diffrn_reflns_av_R_equivalents  0.0385
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_diffrn_reflns_Laue_measured_fraction_full 0.992
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_diffrn_reflns_theta_max         65.042
_diffrn_reflns_theta_min         2.836
_diffrn_source                   'micro focus'
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_exptl_absorpt_correction_T_min  0.5930
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.137
_exptl_crystal_description       prism
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_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.100
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_refine_diff_density_min         -0.200
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_refine_ls_abs_structure_details
;
 Flack x determined using 849 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.08(17)
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
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_refine_ls_number_reflns         2352
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.102
_refine_ls_R_factor_all          0.0812
_refine_ls_R_factor_gt           0.0745
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0894P)^2^+2.4797P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1899
_refine_ls_wR_factor_ref         0.1976
_reflns_Friedel_coverage         0.805
_reflns_Friedel_fraction_full    0.960
_reflns_Friedel_fraction_max     0.960
_reflns_number_gt                2144
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_reflns_threshold_expression     'I > 2\s(I)'
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_cod_original_sg_symbol_H-M      'C 2'
_cod_database_code               7058968
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.902
_shelx_estimated_absorpt_t_max   0.949
_shelx_res_checksum              44461