Kinetic resolution of amines by acylation using 3-diacylaminoquinazolin-4(3H)-ones
Al-Sehemi, Abdullah G.; Atkinson, Robert S.; Fawcett, John; Russell, David R.; Chemical Communications  (2000) 43–; doi:10.1039/a907970j

data_7110757
_publ_section_title
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 Kinetic resolution of amines by acylation using
 3-diacylaminoquinazolin-4(3H)-ones
;
_journal_issue                   1
_journal_name_full               'Chemical Communications'
_journal_page_first              43
_journal_paper_doi               10.1039/a907970j
_journal_year                    2000
_chemical_formula_sum            'C27 H41 N3 O6 Si'
_chemical_formula_weight         531.72
_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                   9.391(2)
_cell_length_b                   13.554(6)
_cell_length_c                   23.908(13)
_cell_measurement_reflns_used    38
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      9.31
_cell_measurement_theta_min      5.48
_cell_volume                     3043(2)
_computing_cell_refinement       'XSCANS (Fait, 1991)'
_computing_data_collection       'XSCANS (Fait, 1991)'
_computing_data_reduction        'XSCANS (Fait, 1991)'
_computing_molecular_graphics    'SHELXL-97 (Sheldrick, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.950
_diffrn_measured_fraction_theta_max 0.950
_diffrn_measurement_device_type  'Siemens P4 diffractometer'
_diffrn_measurement_method       'omega scan'
_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  0.0351
_diffrn_reflns_av_sigmaI/netI    0.1498
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            3756
_diffrn_reflns_theta_full        26.03
_diffrn_reflns_theta_max         26.03
_diffrn_reflns_theta_min         2.27
_diffrn_standards_decay_%        <1
_diffrn_standards_interval_count 1000
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.118
_exptl_absorpt_correction_type   'not applied'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.161
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1144
_exptl_crystal_size_max          0.58
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.450
_refine_diff_density_min         -0.658
_refine_diff_density_rms         0.089
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.7(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     269
_refine_ls_number_reflns         3592
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.2201
_refine_ls_R_factor_gt           0.1020
_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^)+(0.1008P)^2^+12.9755P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2351
_refine_ls_wR_factor_ref         0.3095
_reflns_number_gt                1689
_reflns_number_total             3592
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            a907970jsup1.cif
_cod_data_source_block           8c
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7110757