Rh-catalyzed triple allene approach to bicyclo[4.4.0]decene derivatives and its application for the stepwise synthesis of steroid-like tetracyclic skeletons.
Lu, Ping; Ma, Shengming; Organic letters 9 (2007) 5319–5321; doi:10.1021/ol702557s

data_1505665
_publ_section_title
;
 Rh-catalyzed triple allene approach to bicyclo[4.4.0]decene derivatives
 and its application for the stepwise synthesis of steroid-like
 tetracyclic skeletons.
;
_journal_issue                   25
_journal_name_full               'Organic letters'
_journal_page_first              5319
_journal_page_last               5321
_journal_paper_doi               10.1021/ol702557s
_journal_volume                  9
_journal_year                    2007
_chemical_formula_sum            'C30 H28 O4 S2'
_chemical_formula_weight         516.64
_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                 91.605(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.4994(15)
_cell_length_b                   21.855(2)
_cell_length_c                   8.6424(10)
_cell_measurement_reflns_used    3022
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      45.959
_cell_measurement_theta_min      4.797
_cell_volume                     2548.8(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_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      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.1088
_diffrn_reflns_av_sigmaI/netI    0.0960
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            14929
_diffrn_reflns_theta_full        26.99
_diffrn_reflns_theta_max         26.99
_diffrn_reflns_theta_min         1.77
_exptl_absorpt_coefficient_mu    0.244
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.74284
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.346
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1088
_exptl_crystal_size_max          0.478
_exptl_crystal_size_mid          0.225
_exptl_crystal_size_min          0.107
_refine_diff_density_max         0.598
_refine_diff_density_min         -0.236
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.919
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     329
_refine_ls_number_reflns         5553
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.919
_refine_ls_R_factor_all          0.0844
_refine_ls_R_factor_gt           0.0557
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0597P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1269
_refine_ls_wR_factor_ref         0.1379
_reflns_number_gt                3583
_reflns_number_total             5553
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol702557s-file002.cif
_cod_data_source_block           cd26287
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        2548.7(5)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1505665