Highly diastereoselective addition of lithio vinyl sulfoxides to N-sulfinimines: an entry to enantiopure 3-sulfinyl-2,5-cis-dihydropyrroles.
Viso, Alma; Fernández de la Pradilla, Roberto; Ureña, Mercedes; Colomer, Ignacio; Organic letters 10 (2008) 4775–4778; doi:10.1021/ol801878f

data_1504912
_publ_section_title
;
 Highly diastereoselective addition of lithio vinyl sulfoxides to
 N-sulfinimines: an entry to enantiopure
 3-sulfinyl-2,5-cis-dihydropyrroles.
;
_journal_issue                   21
_journal_name_full               'Organic letters'
_journal_page_first              4775
_journal_page_last               4778
_journal_paper_doi               10.1021/ol801878f
_journal_volume                  10
_journal_year                    2008
_chemical_absolute_configuration rmad
_chemical_formula_sum            'C25 H24 Br N O3 S2'
_chemical_formula_weight         530.48
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.97970(10)
_cell_length_b                   14.9321(3)
_cell_length_c                   27.3603(6)
_cell_measurement_temperature    298(2)
_cell_volume                     2442.99(8)
_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      298(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_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           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0284
_diffrn_reflns_av_sigmaI/netI    0.0308
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            15396
_diffrn_reflns_theta_full        69.49
_diffrn_reflns_theta_max         69.49
_diffrn_reflns_theta_min         3.23
_exptl_absorpt_coefficient_mu    4.108
_exptl_absorpt_correction_T_max  0.720
_exptl_absorpt_correction_T_min  0.472
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2001)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.442
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1088
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.312
_refine_diff_density_min         -0.215
_refine_diff_density_rms         0.037
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.006(12)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.063
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     291
_refine_ls_number_reflns         4420
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.063
_refine_ls_R_factor_all          0.0264
_refine_ls_R_factor_gt           0.0251
_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^)+(0.0424P)^2^+0.0860P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0676
_refine_ls_wR_factor_ref         0.0689
_reflns_number_gt                4238
_reflns_number_total             4420
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol801878f_si_004.cif
_cod_data_source_block           datos_m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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)2(1)2(1)
_cod_database_code               1504912