Formal Total Synthesis of (\±)-Estrone via the Furano Diene Approach
Ya-Ping Xue; Wei-Dong Z. Li; Journal of Organic Chemistry 76 (2011) 57–64; doi:10.1021/jo1015486

data_4025932
_publ_section_title
;
 Formal Total Synthesis of (\+-)-Estrone via the Furano Diene Approach
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              57
_journal_page_last               64
_journal_paper_doi               10.1021/jo1015486
_journal_volume                  76
_journal_year                    2011
_chemical_formula_moiety         'C17 H24 O5'
_chemical_formula_sum            'C17 H24 O5'
_chemical_formula_weight         308.36
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 99.252(11)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.137(9)
_cell_length_b                   7.272(7)
_cell_length_c                   20.597(19)
_cell_measurement_reflns_used    2638
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      26.0
_cell_measurement_theta_min      2.0
_cell_volume                     1499(2)
_computing_cell_refinement       CrystalClear
_computing_data_collection       CrystalClear
_computing_data_reduction        CrystalClear
_computing_publication_material  'CrystalStructure 3.7.0'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      113(2)
_diffrn_detector_area_resol_mean 7.31
_diffrn_measured_fraction_theta_full 0.968
_diffrn_measured_fraction_theta_max 0.968
_diffrn_measurement_device_type  'Rigaku Saturn'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'Rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0963
_diffrn_reflns_av_sigmaI/netI    0.0838
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            13868
_diffrn_reflns_theta_full        26.49
_diffrn_reflns_theta_max         26.49
_diffrn_reflns_theta_min         2.00
_exptl_absorpt_coefficient_mu    0.100
_exptl_absorpt_correction_T_max  0.9862
_exptl_absorpt_correction_T_min  0.9842
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.367
_exptl_crystal_description       prism
_exptl_crystal_F_000             664
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.474
_refine_diff_density_min         -0.450
_refine_diff_density_rms         0.090
_refine_ls_extinction_coef       0.032(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     218
_refine_ls_number_reflns         3007
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0919
_refine_ls_R_factor_gt           0.0646
_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^)+(0.1188P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1736
_refine_ls_wR_factor_ref         0.2138
_reflns_number_gt                2075
_reflns_number_total             3007
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo1015486_si_005.cif
_cod_data_source_block           shelxl
_cod_database_code               4025932