Phosphothreonine (pThr)-Based Multifunctional Peptide Catalysis for Asymmetric Baeyer-Villiger Oxidations of Cyclobutanones.
Featherston, Aaron L.; Shugrue, Christopher R.; Mercado, Brandon Q.; Miller, Scott J.; ACS catalysis 9 (2019) 242–252; doi:10.1021/acscatal.8b04132

data_4515469
_publ_section_title
;
 Phosphothreonine (pThr)-Based Multifunctional Peptide Catalysis for
 Asymmetric Baeyer-Villiger Oxidations of Cyclobutanones.
;
_journal_issue                   1
_journal_name_full               'ACS catalysis'
_journal_page_first              242
_journal_page_last               252
_journal_paper_doi               10.1021/acscatal.8b04132
_journal_volume                  9
_journal_year                    2019
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C17 H14 Br N O4'
_chemical_formula_sum            'C17 H14 Br N O4'
_chemical_formula_weight         376.20
_space_group_crystal_system      monoclinic
_space_group_IT_number           5
_space_group_name_Hall           'I 2y'
_space_group_name_H-M_alt        'I 1 2 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     SHELXT
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 93.045(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   22.7393(8)
_cell_length_b                   5.21210(10)
_cell_length_c                   14.2943(4)
_cell_measurement_reflns_used    14935
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      66.6460
_cell_measurement_theta_min      3.4940
_cell_volume                     1691.76(8)
_computing_cell_refinement       'CrysAlisPro 1.171.39.16b (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.39.16b (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.39.16b (Rigaku OD, 2015)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'CIFTAB-2014/2 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXT-2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      93(2)
_diffrn_detector_area_resol_mean 22.2
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Rigaku Saturn 944+ CCD'
_diffrn_measurement_method       \w
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0765
_diffrn_reflns_av_unetI/netI     0.0287
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            28915
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        66.592
_diffrn_reflns_theta_max         66.592
_diffrn_reflns_theta_min         3.569
_diffrn_source                   'microfocus rotating anode'
_exptl_absorpt_coefficient_mu    3.482
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.65505
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
CrysAlisPro 1.171.39.16b (Rigaku Oxford Diffraction, 2015) 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.477
_exptl_crystal_description       Plate
_exptl_crystal_F_000             760
_exptl_crystal_size_max          0.080
_exptl_crystal_size_mid          0.080
_exptl_crystal_size_min          0.020
_refine_diff_density_max         0.939
_refine_diff_density_min         -0.944
_refine_diff_density_rms         0.064
_refine_ls_abs_structure_details
; 
 Flack x determined using 1201 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   -0.125(16)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     208
_refine_ls_number_reflns         2985
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0393
_refine_ls_R_factor_gt           0.0375
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0534P)^2^+3.1917P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0952
_refine_ls_wR_factor_ref         0.0969
_reflns_Friedel_coverage         0.784
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                2858
_reflns_number_total             2985
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cs8b04132_si_005.cif
_cod_data_source_block           007b-18036
_cod_original_sg_symbol_H-M      'I 2'
_cod_database_code               4515469
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.768
_shelx_estimated_absorpt_t_max   0.934
_shelx_res_checksum              37745
_shelx_hkl_checksum              98051
_shelx_fab_checksum              52017