Catalytic intramolecular hydroamination of aminoallenes using titanium and tantalum complexes of sterically encumbered chiral sulfonamides.
Sha, Fanrui; Shimizu, Emily A.; Slocumb, Hannah S.; Towell, Sydney E.; Zhen, Yi; Porter, Hanna Z.; Takase, Michael K.; Johnson, Adam R.; Dalton transactions (Cambridge, England : 2003) 49 (2020) 12418–12431; doi:10.1039/d0dt02557g

data_7705236
_publ_section_title
;
 Catalytic intramolecular hydroamination of aminoallenes using titanium
 and tantalum complexes of sterically encumbered chiral sulfonamides.
;
_journal_issue                   35
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              12418
_journal_page_last               12431
_journal_paper_doi               10.1039/d0dt02557g
_journal_volume                  49
_journal_year                    2020
_chemical_absolute_configuration ad
_chemical_formula_sum            'C34 H43 N4 O3 S Ta'
_chemical_formula_weight         768.73
_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_creation_method           SHELXL-2018/3
_audit_update_record
;
2019-12-06 deposited with the CCDC.	2020-08-21 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.3873(10)
_cell_length_b                   15.0633(13)
_cell_length_c                   16.5240(13)
_cell_measurement_reflns_used    9857
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      36.34
_cell_measurement_theta_min      2.47
_cell_volume                     3332.2(5)
_computing_cell_refinement       'SAINT v8.38A (Bruker-AXS, 2013)'
_computing_data_collection       'APEX3 v2017.3-0 (Bruker-AXS, 2017)'
_computing_data_reduction        'SAINT v8.38A (Bruker-AXS, 2013)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXS-2013/1 (Sheldrick, 2013)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 10.24
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'Bruker D8 KAPPA'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0400
_diffrn_reflns_av_unetI/netI     0.0376
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.985
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            72114
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.968
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         36.392
_diffrn_reflns_theta_min         1.829
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    3.400
_exptl_absorpt_correction_T_max  0.7471
_exptl_absorpt_correction_T_min  0.5034
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS-2016/2 (Sheldrick, 2014)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.532
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             1552
_exptl_crystal_size_max          0.700
_exptl_crystal_size_mid          0.400
_exptl_crystal_size_min          0.300
_refine_diff_density_max         0.533
_refine_diff_density_min         -1.202
_refine_diff_density_rms         0.089
_refine_ls_abs_structure_details
; 
 Flack x determined using 6442 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   0.007(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.993
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     450
_refine_ls_number_reflns         15757
_refine_ls_number_restraints     267
_refine_ls_restrained_S_all      0.986
_refine_ls_R_factor_all          0.0201
_refine_ls_R_factor_gt           0.0180
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     'w=1/[\s^2^(Fo^2^)] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0375
_refine_ls_wR_factor_ref         0.0380
_reflns_Friedel_coverage         0.807
_reflns_Friedel_fraction_full    0.996
_reflns_Friedel_fraction_max     0.948
_reflns_number_gt                15000
_reflns_number_total             15757
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0dt02557g2.cif
_cod_data_source_block           D19049
_cod_depositor_comments
'Adding full bibliography for 7705232--7705236.cif.'
_cod_database_code               7705236
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.199
_shelx_estimated_absorpt_t_max   0.429
_shelx_res_checksum              93582