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_1505664
_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            'C27 H24 O6 S'
_chemical_formula_weight         476.52
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_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                 97.270(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.3539(11)
_cell_length_b                   8.0181(9)
_cell_length_c                   31.277(4)
_cell_measurement_reflns_used    1517
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      42.081
_cell_measurement_theta_min      4.822
_cell_volume                     2326.9(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 0.994
_diffrn_measured_fraction_theta_max 0.994
_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  0.0973
_diffrn_reflns_av_sigmaI/netI    0.1753
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       39
_diffrn_reflns_limit_l_min       -39
_diffrn_reflns_number            13686
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         1.31
_exptl_absorpt_coefficient_mu    0.181
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.7904
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.360
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             1000
_exptl_crystal_size_max          0.365
_exptl_crystal_size_mid          0.302
_exptl_crystal_size_min          0.107
_refine_diff_density_max         0.211
_refine_diff_density_min         -0.223
_refine_diff_density_rms         0.047
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.0(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.775
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     618
_refine_ls_number_reflns         9561
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.775
_refine_ls_R_factor_all          0.1305
_refine_ls_R_factor_gt           0.0578
_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^)+(0.0525P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1198
_refine_ls_wR_factor_ref         0.1621
_reflns_number_gt                4103
_reflns_number_total             9561
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol702557s-file001.cif
_cod_data_source_block           cd2782
_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_sg_symbol_H-M      P2(1)
_cod_database_code               1505664