Ni-catalyzed asymmetric decarboxylation for the construction of carbocycles with contiguous quaternary carbon stereocenters.
He, Yicheng; Yan, Biwei; Ma, Cheng; Ni, Shaofei; Guo, Wusheng; Chemical science 16 (2025) 834–839; doi:10.1039/d4sc06849a

data_1573301
_publ_section_title
;
 Ni-catalyzed asymmetric decarboxylation for the construction of
 carbocycles with contiguous quaternary carbon stereocenters.
;
_journal_issue                   2
_journal_name_full               'Chemical science'
_journal_page_first              834
_journal_page_last               839
_journal_paper_doi               10.1039/d4sc06849a
_journal_volume                  16
_journal_year                    2025
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C30 H27 N O3'
_chemical_formula_sum            'C30 H27 N O3'
_chemical_formula_weight         449.52
_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   mixed
_atom_sites_solution_primary     dual
_audit_creation_date             2021-11-12
_audit_creation_method
;
Olex2 1.3
(compiled 2020.11.12 svn.r5f609507 for OlexSys, GUI svn.r6408)
;
_audit_update_record
;
2021-11-13 deposited with the CCDC.	2024-11-25 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.51317(15)
_cell_length_b                   15.2775(3)
_cell_length_c                   21.4630(4)
_cell_measurement_reflns_used    8308
_cell_measurement_temperature    149.99(10)
_cell_measurement_theta_max      73.8620
_cell_measurement_theta_min      3.5430
_cell_volume                     2463.58(8)
_computing_cell_refinement       'CrysAlisPro 1.171.38.43f (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.43f (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.43f (Rigaku OD, 2015)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT  (Sheldrick, 2015)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      149.99(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 5.2684
_diffrn_detector_type            AtlasS2
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w    -65.00  34.00   1.00    1.00    --  -40.73  38.00 120.00   99
  2  \w   -113.00 -13.00   1.00    1.00    --  -40.73 -57.00 -30.00  100
  3  \w      1.00  82.00   1.00    1.00    --   40.73 -99.00  30.00   81
  4  \w     35.00 134.00   1.00    1.18    --  108.20 -45.00  30.00   99
  5  \w     32.00 136.00   1.00    1.18    --  108.20 -30.00 -60.00  104
  6  \w     26.00 109.00   1.00    1.18    --  108.20 -95.00 -60.00   83
  7  \w     35.00 121.00   1.00    1.18    --  108.20-125.00  90.00   86
  8  \w     94.00 178.00   1.00    1.18    --  108.20 125.00-120.00   84
  9  \w     36.00 137.00   1.00    1.18    --  108.20 -61.00 -90.00  101
 10  \w   -113.00 -97.00   1.00    1.00    --  -40.73 -57.00-180.00   16
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, AtlasS2'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.1803976000
_diffrn_orient_matrix_UB_12      0.0071758000
_diffrn_orient_matrix_UB_13      -0.0338057000
_diffrn_orient_matrix_UB_21      -0.0912984000
_diffrn_orient_matrix_UB_22      -0.0227565000
_diffrn_orient_matrix_UB_23      -0.0622063000
_diffrn_orient_matrix_UB_31      -0.0344136000
_diffrn_orient_matrix_UB_32      0.0979228000
_diffrn_orient_matrix_UB_33      -0.0119387000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0256
_diffrn_reflns_av_unetI/netI     0.0284
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.986
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            12587
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.975
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         74.098
_diffrn_reflns_theta_min         3.551
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    0.617
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.70301
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.43f (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.212
_exptl_crystal_description       block
_exptl_crystal_F_000             952
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.271
_refine_diff_density_min         -0.185
_refine_diff_density_rms         0.043
_refine_ls_abs_structure_details
;
 Flack x determined using 1909 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.09(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.050
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     317
_refine_ls_number_reflns         4889
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.050
_refine_ls_R_factor_all          0.0367
_refine_ls_R_factor_gt           0.0351
_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^)+(0.0469P)^2^+0.3360P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0884
_refine_ls_wR_factor_ref         0.0903
_reflns_Friedel_coverage         0.732
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.961
_reflns_number_gt                4701
_reflns_number_total             4889
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4sc06849a2.cif
_cod_data_source_block           307
_cod_depositor_comments
'Adding full bibliography for 1573300--1573302.cif.'
_cod_original_cell_volume        2463.57(8)
_cod_database_code               1573301
_shelx_shelxl_version_number     2018/3
_reflns_odcompleteness_completeness 100.00
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     66.97
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups, All O(H) groups
2.a Ternary CH refined with riding coordinates:
 C13(H13), C16(H16)
2.b Secondary CH2 refined with riding coordinates:
 C17(H17A,H17B), C28(H28A,H28B)
2.c Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3A), C5(H5), C6(H6), C8(H8), C9(H9), C10(H10), C11(H11), C12(H12),
  C18(H18), C22(H22), C23(H23), C24(H24), C25(H25), C26(H26)
2.d Idealised Me refined as rotating group:
 C29(H29A,H29B,H29C)
2.e Idealised tetrahedral OH refined as rotating group:
 O3(H3)
;
_shelx_res_checksum              7921
_shelx_hkl_checksum              68044
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.549
_oxdiff_exptl_absorpt_empirical_full_min 0.582