Dynamic kinetic resolution of transient hemiketals: a strategy for the desymmetrisation of prochiral oxetanols
Sandvoß, Alexander; Maag, Henning; Daniliuc, Constantin G.; Schollmeyer, Dieter; Wahl, Johannes M.; Chemical Science  (2022) –; doi:10.1039/D2SC01547A

data_1566956
_publ_section_title
;
 Dynamic kinetic resolution of transient hemiketals: a strategy for the
 desymmetrisation of prochiral oxetanols
;
_journal_name_full               'Chemical Science'
_journal_paper_doi               10.1039/D2SC01547A
_journal_year                    2022
_chemical_formula_sum            'C15 H12 F3 N O4'
_chemical_formula_weight         327.26
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           'APEX3 v2016.1-0'
_audit_update_record
;
2021-12-21 deposited with the CCDC.	2022-05-11 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   13.5889(3)
_cell_length_b                   9.9317(2)
_cell_length_c                   20.9678(4)
_cell_measurement_reflns_used    9928
_cell_measurement_temperature    100.(2)
_cell_measurement_theta_max      68.3384
_cell_measurement_theta_min      4.2170
_cell_volume                     2829.83(10)
_computing_cell_refinement       'SAINT V8.37A (Bruker AXS Inc., 2015)'
_computing_data_collection
;

APEX3 v2016.1-0 (Bruker AXS Inc., 2016)
;
_computing_data_reduction        'SAINT V8.37A (Bruker AXS Inc., 2015)'
_computing_molecular_graphics    'XP (Sheldrick, 2014)'
_computing_publication_material  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100.(2)
_diffrn_detector_area_resol_mean 7.3910
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker D8 Venture PHOTON 100 CMOS'
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_monochromator  'MX mirror'
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0526
_diffrn_reflns_av_unetI/netI     0.0399
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            22240
_diffrn_reflns_theta_full        68.36
_diffrn_reflns_theta_max         68.36
_diffrn_reflns_theta_min         4.22
_diffrn_source                   'Cu ImS'
_diffrn_source_type              'micro focus tube'
_exptl_absorpt_coefficient_mu    1.198
_exptl_absorpt_correction_T_max  0.93
_exptl_absorpt_correction_T_min  0.70
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Bruker AXS (2014). SADABS, Version 2014/5, Bruker AXS Inc., Madison, Wisconsin,
USA.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.536
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1344
_exptl_crystal_size_max          0.334
_exptl_crystal_size_mid          0.101
_exptl_crystal_size_min          0.058
_refine_diff_density_max         0.275
_refine_diff_density_min         -0.272
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     212
_refine_ls_number_reflns         2578
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0382
_refine_ls_R_factor_gt           0.0338
_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^)+(0.0317P)^2^+1.4456P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0801
_refine_ls_wR_factor_ref         0.0827
_reflns_number_gt                2349
_reflns_number_total             2578
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2sc01547a2.cif
_cod_data_source_block           wie9750
_cod_database_code               1566956
_shelx_res_checksum              38832