Guanidine-Catalyzed Enantioselective Desymmetrization of meso-Aziridines
Yan Zhang; Choon Wee Kee; Richmond Lee; Xiao Fu; Julian Ying-Teck Soh; Esther Mun Foong Loh; Kuo-Wei Huang; Choon-Hong Tan; Chem.Commun. 47 (2011) 3897–; doi:10.1039/c0cc05840h

data_7106162
_publ_section_title
;
 Guanidine-Catalyzed Enantioselective Desymmetrization of meso-Aziridines
;
_journal_name_full               Chem.Commun.
_journal_page_first              3897
_journal_paper_doi               10.1039/c0cc05840h
_journal_volume                  47
_journal_year                    2011
_chemical_formula_sum            'C19 H17 Cl2 N3 O5 S'
_chemical_formula_weight         470.32
_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                 101.790(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.4505(6)
_cell_length_b                   6.8838(5)
_cell_length_c                   17.8060(13)
_cell_measurement_reflns_used    2453
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      26.22
_cell_measurement_theta_min      2.34
_cell_volume                     1013.95(13)
_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      223(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0265
_diffrn_reflns_av_sigmaI/netI    0.0423
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            7133
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         1.17
_exptl_absorpt_coefficient_mu    0.461
_exptl_absorpt_correction_T_max  0.9818
_exptl_absorpt_correction_T_min  0.8895
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs, (Sheldrick 2001)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.540
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'Thin Plate'
_exptl_crystal_F_000             484
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.371
_refine_diff_density_min         -0.280
_refine_diff_density_rms         0.075
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.01(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.141
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     274
_refine_ls_number_reflns         3546
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.141
_refine_ls_R_factor_all          0.0494
_refine_ls_R_factor_gt           0.0459
_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^)+(0.0779P)^2^+0.0928P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1160
_refine_ls_wR_factor_ref         0.1334
_reflns_number_gt                3371
_reflns_number_total             3546
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0cc05840h.txt
_cod_data_source_block           9440
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-scan'
changed to 'multi-scan' according to the built-in table from CIF Core
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               7106162