Microwave-assisted synthesis of substituted 2-(benzylthio)imidazo[1,2a]pyrimidin-5-ones.
Soh, Chai Hoon; Lam, Yulin; Journal of combinatorial chemistry 12 (2010) 286–291; doi:10.1021/cc900176x

data_1502648
_publ_section_title
;
 Microwave-assisted synthesis of substituted
 2-(benzylthio)imidazo[1,2a]pyrimidin-5-ones.
;
_journal_issue                   2
_journal_name_full               'Journal of combinatorial chemistry'
_journal_page_first              286
_journal_page_last               291
_journal_paper_doi               10.1021/cc900176x
_journal_volume                  12
_journal_year                    2010
_chemical_formula_sum            'C22 H19 N3 O2 S'
_chemical_formula_weight         389.46
_chemical_name_systematic
; 
 2-(benzylthio)-7-methyl-5-oxo-1,5-dihydroimidazo[1,2-a]pyrimidine-6-carbaldehyde  
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 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                 105.7180(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   17.4388(9)
_cell_length_b                   15.7401(8)
_cell_length_c                   14.4540(8)
_cell_measurement_reflns_used    6389
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      27.46
_cell_measurement_theta_min      2.43
_cell_volume                     3819.1(3)
_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 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0215
_diffrn_reflns_av_sigmaI/netI    0.0248
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            13247
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.77
_exptl_absorpt_coefficient_mu    0.193
_exptl_absorpt_correction_T_max  0.9444
_exptl_absorpt_correction_T_min  0.8610
_exptl_absorpt_correction_type   'Sadabs,(Sheldrick 2001)'
_exptl_crystal_colour            PALE
_exptl_crystal_density_diffrn    1.355
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             1632
_exptl_crystal_size_max          0.80
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.319
_refine_diff_density_min         -0.218
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     254
_refine_ls_number_reflns         4396
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0478
_refine_ls_R_factor_gt           0.0419
_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^)+(0.0672P)^2^+1.3864P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1129
_refine_ls_wR_factor_ref         0.1171
_reflns_number_gt                3797
_reflns_number_total             4396
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cc900176x_si_002.cif
_cod_data_source_block
2-(benzylthio)-7-methyl-5-oxo-1,5-dihydroimidazo[1,2-a]pyrimidine-6-carbaldehyde
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               1502648