Conversion of Torgov's Synthesis of Estrone into a Highly Enantioselective and Efficient Process
Ying-Yeung Yeung; Rong-Jie Chein; E. J. Corey; Journal of the American Chemical Society 129 (2007) 10346–10347; doi:10.1021/ja0742434

data_4109830
_publ_section_title
;
 Conversion of Torgov's Synthesis of Estrone into a Highly
 Enantioselective and Efficient Process
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10346
_journal_page_last               10347
_journal_paper_doi               10.1021/ja0742434
_journal_volume                  129
_journal_year                    2007
_chemical_formula_sum            'C19 H24 O3'
_chemical_formula_weight         300.38
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      4
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 98.310(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.0259(9)
_cell_length_b                   8.3222(13)
_cell_length_c                   16.080(3)
_cell_measurement_reflns_used    996
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      27.88
_cell_measurement_theta_min      2.76
_cell_volume                     797.9(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      193(2)
_diffrn_detector_area_resol_mean 836.6
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker CCD'
_diffrn_measurement_method       '\w, 0.3 deg'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0501
_diffrn_reflns_av_sigmaI/netI    0.0369
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            6111
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.56
_diffrn_standards_decay_%        <1
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.083
_exptl_absorpt_correction_T_max  0.9918
_exptl_absorpt_correction_T_min  0.9796
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.250
_exptl_crystal_description       bar
_exptl_crystal_F_000             324
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.609
_refine_diff_density_min         -0.260
_refine_diff_density_rms         0.044
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.7(15)
_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     205
_refine_ls_number_reflns         2621
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.0493
_refine_ls_R_factor_gt           0.0469
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0738P)^2^+0.2678P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1218
_refine_ls_wR_factor_ref         0.1236
_reflns_number_gt                2461
_reflns_number_total             2621
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0742434si20070611_031013.cif
_cod_data_source_block           ejc138t
_cod_database_code               4109830