Versatile Synthesis and Mechanism of Activation of S-Benzoxazolyl Glycosides
Medha N. Kamat; Nigam P. Rath; Alexei V. Demchenko; Journal of Organic Chemistry 72 (2007) 6938–6946; doi:10.1021/jo0711844

data_4024150
_publ_section_title
;
 Versatile Synthesis and Mechanism of Activation of S-Benzoxazolyl
 Glycosides
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              6938
_journal_page_last               6946
_journal_paper_doi               10.1021/jo0711844
_journal_volume                  72
_journal_year                    2007
_chemical_formula_sum            'C7 H5 N O S'
_chemical_formula_weight         151.18
_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                 90.594(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   4.3258(2)
_cell_length_b                   8.9820(4)
_cell_length_c                   8.4721(4)
_cell_measurement_reflns_used    2794
_cell_measurement_temperature    165(2)
_cell_measurement_theta_max      28.19
_cell_measurement_theta_min      2.40
_cell_volume                     329.16(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker-SHELXTL (Sheldrick, 2003)'
_computing_publication_material  'Bruker-SHELXTL (Sheldrick, 2003)'
_computing_structure_refinement  'Bruker-SHELXTL (Sheldrick, 2003)'
_computing_structure_solution    'Bruker-SHELXTL (Sheldrick, 2003)'
_diffrn_ambient_temperature      165(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0529
_diffrn_reflns_av_sigmaI/netI    0.0544
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            5205
_diffrn_reflns_theta_full        26.99
_diffrn_reflns_theta_max         26.99
_diffrn_reflns_theta_min         2.40
_exptl_absorpt_coefficient_mu    0.406
_exptl_absorpt_correction_T_max  0.9840
_exptl_absorpt_correction_T_min  0.8845
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.525
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             156
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.320
_refine_diff_density_min         -0.248
_refine_diff_density_rms         0.048
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.19(11)
_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     111
_refine_ls_number_reflns         1427
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0538
_refine_ls_R_factor_gt           0.0398
_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^)+(0.0329P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0677
_refine_ls_wR_factor_ref         0.0702
_reflns_number_gt                1181
_reflns_number_total             1427
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo0711844-File006.cif
_cod_data_source_block           v14504
_cod_depositor_comments
;
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 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'no' 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      'P 21'
_cod_database_code               4024150