Highly diastereoselective Friedel-Crafts reaction of indoles with an N-tert-butanesulfinylimino ester: an efficient and practical approach to enantiomerically enriched alpha-(3-indolyl)glycines.
Ji, Du-Ming; Xu, Ming-Hua; Chemical communications (Cambridge, England) 46 (2010) 1550–1552; doi:10.1039/b914687c

data_7105315
_publ_section_title
;
 Highly diastereoselective Friedel-Crafts reaction of indoles with an
 N-tert-butanesulfinylimino ester: an efficient and practical approach
 to enantiomerically enriched alpha-(3-indolyl)glycines.
;
_journal_issue                   9
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              1550
_journal_page_last               1552
_journal_paper_doi               10.1039/b914687c
_journal_volume                  46
_journal_year                    2010
_chemical_absolute_configuration ad
_chemical_formula_sum            'C16 H21 Br N2 O3 S'
_chemical_formula_weight         401.32
_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                 99.473(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.3558(14)
_cell_length_b                   9.4206(14)
_cell_length_c                   10.6930(16)
_cell_measurement_reflns_used    1947
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      47.471
_cell_measurement_theta_min      4.414
_cell_volume                     929.6(2)
_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  0.0425
_diffrn_reflns_av_sigmaI/netI    0.0577
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            5119
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         1.93
_exptl_absorpt_coefficient_mu    2.338
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.79731
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.434
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             412
_exptl_crystal_size_max          0.372
_exptl_crystal_size_mid          0.261
_exptl_crystal_size_min          0.185
_refine_diff_density_max         0.712
_refine_diff_density_min         -0.328
_refine_diff_density_rms         0.069
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.011(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.926
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     220
_refine_ls_number_reflns         3425
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      0.926
_refine_ls_R_factor_all          0.0595
_refine_ls_R_factor_gt           0.0478
_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^)+(0.0632P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1071
_refine_ls_wR_factor_ref         0.1110
_reflns_number_gt                2631
_reflns_number_total             3425
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b914687c.txt
_cod_data_source_block           cd29248
_cod_depositor_comments
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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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               7105315