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_7110756
_publ_section_title
;
 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_moiety         'C27 H41 N3 O6 Si'
_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                   10.1464(12)
_cell_length_b                   13.2964(18)
_cell_length_c                   22.618(3)
_cell_measurement_reflns_used    33
_cell_measurement_temperature    190(2)
_cell_measurement_theta_max      12.56
_cell_measurement_theta_min      5.35
_cell_volume                     3051.4(7)
_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      190(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_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  0.0130
_diffrn_reflns_av_sigmaI/netI    0.0595
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -1
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -1
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -1
_diffrn_reflns_number            3845
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.53
_diffrn_standards_decay_%        <1
_diffrn_standards_interval_count 100
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.118
_exptl_absorpt_correction_type   'not applied'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.157
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1144
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.37
_refine_diff_density_max         0.184
_refine_diff_density_min         -0.169
_refine_diff_density_rms         0.034
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.0(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     334
_refine_ls_number_reflns         3639
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.1218
_refine_ls_R_factor_gt           0.0521
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0454P)^2^+0.2254P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0919
_refine_ls_wR_factor_ref         0.1141
_reflns_number_gt                1987
_reflns_number_total             3639
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            a907970jsup1.cif
_cod_data_source_block           8b
_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               7110756