Stereoinversion in Pd-catalyzed allylic substitution induced by modification of olefinic moiety in chiral phosphine-acrylamide ligands.
Watanabe, Kohei; Toba, Yuto; Mita, Shimpei; Kanda, Yusuke; Yagi, Toru; Kanauchi, Kento; Kumada, Manami; Yoshida, Yasushi; Kasashima, Yoshio; Takita, Ryo; Sakamoto, Masami; Mino, Takashi; Organic & biomolecular chemistry 23 (2025) 7431–7438; doi:10.1039/d5ob01034a

data_7160643
_publ_section_title
;
 Stereoinversion in Pd-catalyzed allylic substitution induced by
 modification of olefinic moiety in chiral phosphine-acrylamide ligands.
;
_journal_issue                   32
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              7431
_journal_page_last               7438
_journal_paper_doi               10.1039/d5ob01034a
_journal_volume                  23
_journal_year                    2025
_chemical_absolute_configuration unk
_chemical_formula_sum            'C32 H32 N O P'
_chemical_formula_weight         477.55
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_update_record
;
2024-04-24 deposited with the CCDC.	2025-07-18 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.8268(8)
_cell_length_b                   16.7704(15)
_cell_length_c                   17.9763(17)
_cell_measurement_reflns_used    9982
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      68.6768
_cell_measurement_theta_min      3.6044
_cell_volume                     2661.0(4)
_computing_cell_refinement       'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_data_collection       'APEX2 (Bruker AXS, 2006)'
_computing_data_reduction        'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_molecular_graphics    'XSHEL (Bruker AXS,2002)'
_computing_publication_material  'XCIF (Bruker AXS, 2001)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  'Bruker APEXII Ultra CCD area detector'
_diffrn_measurement_method       'Phi and Omega scans'
_diffrn_radiation_monochromator  'Bruker Helios multilayer confocal mirror'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0253
_diffrn_reflns_av_unetI/netI     0.0350
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            13975
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         68.671
_diffrn_reflns_theta_min         3.604
_diffrn_source                   'Bruker TXS fine-focus rotating anode'
_exptl_absorpt_coefficient_mu    1.091
_exptl_absorpt_correction_T_max  0.81
_exptl_absorpt_correction_T_min  0.74
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.192
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1016
_exptl_crystal_size_max          0.600
_exptl_crystal_size_mid          0.400
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.275
_refine_diff_density_min         -0.304
_refine_ls_abs_structure_details
;
Flack x determined using 1956 quotients [(I+)-(I-)]/[(I+)+(I-)]
(Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.033(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.736
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     320
_refine_ls_number_reflns         4739
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.736
_refine_ls_R_factor_all          0.0337
_refine_ls_R_factor_gt           0.0334
_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^)+(0.1000P)^2^+0.5264P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0902
_refine_ls_wR_factor_ref         0.0911
_reflns_number_gt                4686
_reflns_number_total             4739
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5ob01034a2.cif
_cod_data_source_block           I_CCDC2
_cod_depositor_comments
'Adding full bibliography for 7160641--7160643.cif.'
_cod_database_code               7160643