Photochemical asymmetric synthesis of quartenary chiral carbons using chiral-memory effect on beta-hydrogen abstraction by thiocarbonyl group
Masami Sakamoto; Tsutomu Fujita; Yoshio Kasashima; Hiroya Kawanishi; Takashi Mino; Chemical Communications  (2006) –; doi:10.1039/b608513j

data_7101520
_publ_section_title
;
Photochemical asymmetric synthesis of quartenary
chiral carbons using chiral-memory effect on beta-hydrogen abstraction
by thiocarbonyl group
;
_journal_issue                   44
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/b608513j
_journal_year                    2006
_chemical_formula_sum            'C22 H18 Cl N O S'
_chemical_formula_weight         379.88
_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                   9.6375(5)
_cell_length_b                   10.0167(5)
_cell_length_c                   20.0523(10)
_cell_measurement_reflns_used    7027
_cell_measurement_temperature    173
_cell_measurement_theta_max      28.23
_cell_measurement_theta_min      2.27
_cell_volume                     1935.77(17)
_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      173
_diffrn_detector_area_resol_mean 8.333
_diffrn_measured_fraction_theta_full 0.947
_diffrn_measured_fraction_theta_max 0.947
_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  0.0217
_diffrn_reflns_av_sigmaI/netI    0.0271
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            10893
_diffrn_reflns_theta_full        28.39
_diffrn_reflns_theta_max         28.39
_diffrn_reflns_theta_min         2.03
_exptl_absorpt_coefficient_mu    0.315
_exptl_absorpt_correction_T_max  0.8976
_exptl_absorpt_correction_T_min  0.8842
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
SADABS Sheldrick 1996
;
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.303
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cubic
_exptl_crystal_F_000             792
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.524
_refine_diff_density_min         -0.411
_refine_diff_density_rms         0.158
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.05(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   2.206
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     236
_refine_ls_number_reflns         4458
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      2.206
_refine_ls_R_factor_all          0.0369
_refine_ls_R_factor_gt           0.0346
_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^)+(0.0000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0746
_refine_ls_wR_factor_ref         0.0752
_reflns_number_gt                4211
_reflns_number_total             4458
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b608513j.txt
_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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7101520