A concise synthesis of a highly substituted 6-(1<i>H</i>-benzimidazol-1-yl)-5-nitrosopyrimidin-2-amine: synthetic sequence and the molecular and supramolecular structures of one product and two intermediates
Cobo, Justo; Vicentes, Daniel E.; Rodríguez, Ricaurte; Marchal, Antonio; Glidewell, Christopher; Acta Crystallographica Section C 74 (2018) –; doi:10.1107/S2053229618007015

data_2021128
_publ_section_title
;
 A concise synthesis of a highly substituted
 6-(1<i>H</i>-benzimidazol-1-yl)-5-nitrosopyrimidin-2-amine: synthetic
 sequence and the molecular and supramolecular structures of one product
 and two intermediates
;
_journal_coeditor_code           KY3144
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first
;
;
_journal_paper_doi               10.1107/S2053229618007015
_journal_volume                  74
_journal_year                    2018
_chemical_formula_iupac          'C19 H18 N6 O2, C2 H6 O S'
_chemical_formula_moiety         'C19 H18 N6 O2, C2 H6 O S'
_chemical_formula_sum            'C21 H24 N6 O3 S'
_chemical_formula_weight         440.52
_chemical_name_systematic
'6-Methoxy-<i>N</i>^4^-{2-[(4-methylbenzylidene)amino]phenyl}-5-nitrosopyrimidine-2,4-diamine dimethyl sulfoxide monosolvate'
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014
_cell_angle_alpha                90
_cell_angle_beta                 104.28(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.801(5)
_cell_length_b                   17.301(8)
_cell_length_c                   11.777(7)
_cell_measurement_reflns_used    4914
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.590
_cell_measurement_theta_min      2.138
_cell_volume                     2132.7(19)
_computing_cell_refinement
;
SAINT (Bruker, 2016)
;
_computing_data_collection
;
APEX3 (Bruker, 2016)
;
_computing_data_reduction
;
SAINT (Bruker, 2016)
;
_computing_molecular_graphics
;
PLATON (Spek, 2009)
;
_computing_publication_material
;
SHELXL2014 (Sheldrick, 2015) and PLATON (Spek, 2009)
;
_computing_structure_refinement
;
SHELXL2014 (Sheldrick, 2015)
;
_computing_structure_solution
;
SIR92 (Altomare <i>et al.</i>,  1994)
;
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'multilayer mirror'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0661
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            20005
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.594
_diffrn_reflns_theta_min         2.138
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.188
_exptl_absorpt_correction_T_max  0.969
_exptl_absorpt_correction_T_min  0.818
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(SADABS; Bruker, 2016)
;
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.372
_exptl_crystal_description       block
_exptl_crystal_F_000             928
_exptl_crystal_size_max          0.220
_exptl_crystal_size_mid          0.219
_exptl_crystal_size_min          0.170
_refine_diff_density_max         0.435
_refine_diff_density_min         -0.408
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     293
_refine_ls_number_reflns         4914
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0721
_refine_ls_R_factor_gt           0.0434
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0366P)^2^+0.9653P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0885
_refine_ls_wR_factor_ref         0.0988
_reflns_number_gt                3658
_reflns_number_total             4914
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ky3144sup1.cif
_cod_data_source_block           I
_cod_database_code               2021128
_cod_database_fobs_code          2021128
_shelx_estimated_absorpt_t_min   0.960
_shelx_estimated_absorpt_t_max   0.969
_shelx_hkl_checksum              79930
_shelx_res_checksum              72034
_shelxl_version_number           2.014