Scalable C-H Oxidation with Copper: Synthesis of Polyoxypregnanes.
See, Yi Yang; Herrmann, Aaron T.; Aihara, Yoshinori; Baran, Phil S.; Journal of the American Chemical Society 137 (2015) 13776–13779; doi:10.1021/jacs.5b09463

data_4124721
_publ_section_title
;
 Scalable C-H Oxidation with Copper: Synthesis of Polyoxypregnanes.
;
_journal_issue                   43
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              13776
_journal_page_last               13779
_journal_paper_doi               10.1021/jacs.5b09463
_journal_volume                  137
_journal_year                    2015
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C21 H30 O4'
_chemical_formula_sum            'C21 H30 O4'
_chemical_formula_weight         346.45
_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'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_audit_creation_date             2015-06-18
_audit_creation_method
;
Olex2 1.2
(compiled 2015.01.26 svn.r3150 for OlexSys, GUI svn.r4998)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.24960(10)
_cell_length_b                   10.8528(2)
_cell_length_c                   23.5068(4)
_cell_measurement_reflns_used    9977
_cell_measurement_temperature    100
_cell_measurement_theta_max      68.15
_cell_measurement_theta_min      4.49
_cell_volume                     1849.48(5)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.0
_diffrn_detector                 'Bruker APEX-II CCD'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CCD Area Detector'
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device       'Kappa Four-Circle Diffractometer'
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'Double Bounce Multilayer Mirrors'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0226
_diffrn_reflns_av_unetI/netI     0.0191
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            15318
_diffrn_reflns_point_group_measured_fraction_full 0.990
_diffrn_reflns_point_group_measured_fraction_max 0.985
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         68.141
_diffrn_reflns_theta_min         4.487
_diffrn_source                   'Micro Focus Rotating Anode'
_diffrn_source_type              'Bruker TXS'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.676
_exptl_absorpt_correction_T_max  0.1663
_exptl_absorpt_correction_T_min  0.0699
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2014/4 (Bruker,2014/4) was used for absorption correction.
wR2(int) was 0.0606 before and 0.0354 after correction.
The Ratio of minimum to maximum transmission is 0.4203.
The \l/2 correction factor is 0.00150.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.244
_exptl_crystal_description       block
_exptl_crystal_F_000             752
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.210
_refine_diff_density_min         -0.128
_refine_diff_density_rms         0.032
_refine_ls_abs_structure_details
;
 Flack x determined using 1363 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.01(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     238
_refine_ls_number_reflns         3336
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.0306
_refine_ls_R_factor_gt           0.0304
_refine_ls_shift/su_max          0.090
_refine_ls_shift/su_mean         0.007
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0539P)^2^+0.2715P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0814
_refine_ls_wR_factor_ref         0.0818
_reflns_Friedel_coverage         0.707
_reflns_Friedel_fraction_full    0.981
_reflns_Friedel_fraction_max     0.974
_reflns_number_gt                3299
_reflns_number_total             3336
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja5b09463_si_006.cif
_cod_data_source_block           baran518
_cod_depositor_comments
;
The following automatic conversions were performed:

'_diffrn_radiation_probe' value 'X-ray' changed to 'x-ray' according
to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 

 Adding full bibliography for 4124715--4124721.cif.
;
_cod_database_code               4124721
_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:
 C6(H6), C7(H7), C16(H16), C20(H20)
2.b Secondary CH2 refined with riding coordinates:
 C9(H9A,H9B), C10(H10A,H10B), C11(H11A,H11B), C13(H13A,H13B), C14(H14A,H14B),
 C17(H17A,H17B)
2.c Aromatic/amide H refined with riding coordinates:
 C18(H18), C19(H19)
2.d Idealised Me refined as rotating group:
 C1(H1A,H1B,H1C), C15(H15A,H15B,H15C), C21(H21A,H21B,H21C)
;
_shelx_res_checksum              34119
_shelx_hkl_checksum              1037
_shelx_shelxl_version_number     2014/7
_olex2_submission_special_instructions 'No special instructions were received'