One-Pot Synthesis of 2,4,5-Trisubstituted Imidazoles via [2 + 2 + 1] Cycloannulation of 1,3-Bishet(aryl)-monothio-1,3-diketones, α-Substituted Methylamines and Sodium Nitrite through α-Nitrosation of Enaminones.
Yugandar, S.; Konda, S.; Parameshwarappa, G.; Ila, H.; The Journal of organic chemistry 81 (2016) 5606–5622; doi:10.1021/acs.joc.6b00938

data_4032006
_publ_section_title
;
 One-Pot Synthesis of 2,4,5-Trisubstituted Imidazoles via [2 + 2 + 1]
 Cycloannulation of 1,3-Bishet(aryl)-monothio-1,3-diketones,
 \a-Substituted Methylamines and Sodium Nitrite through \a-Nitrosation of
 Enaminones.
;
_journal_issue                   13
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              5606
_journal_page_last               5622
_journal_paper_doi               10.1021/acs.joc.6b00938
_journal_volume                  81
_journal_year                    2016
_chemical_formula_moiety         'C24 H20 N2 O2'
_chemical_formula_sum            'C24 H20 N2 O2'
_chemical_formula_weight         368.42
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2015-07-31
_audit_creation_method
;
Olex2 1.2
(compiled 2015.01.26 svn.r3150 for OlexSys, GUI svn.r4998)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.4681(4)
_cell_length_b                   10.6574(5)
_cell_length_c                   17.3657(9)
_cell_measurement_reflns_used    5282
_cell_measurement_temperature    298
_cell_measurement_theta_max      21.741
_cell_measurement_theta_min      2.242
_cell_volume                     1937.36(15)
_computing_cell_refinement       'SAINT v8.34A (Bruker, 2013)'
_computing_data_reduction        'SAINT v8.34A (Bruker, 2013)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2008)'
_diffrn_ambient_temperature      297.99
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0691
_diffrn_reflns_av_unetI/netI     0.0421
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            23110
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.719
_diffrn_reflns_theta_min         2.272
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  0.7453
_exptl_absorpt_correction_T_min  0.6892
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2014/5 (Bruker,2014/5) was used for absorption correction.
wR2(int) was 0.0896 before and 0.0540 after correction.
The Ratio of minimum to maximum transmission is 0.9247.
The \l/2 correction factor is 0.00150.
;
_exptl_crystal_colour            'clear yellowish yellow'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   yellowish
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.263
_exptl_crystal_description       irregular
_exptl_crystal_F_000             776
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.131
_refine_diff_density_min         -0.191
_refine_diff_density_rms         0.041
_refine_ls_abs_structure_details
;
 Flack x determined using 897 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.3(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     255
_refine_ls_number_reflns         3681
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0815
_refine_ls_R_factor_gt           0.0525
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0517P)^2^+0.3763P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1086
_refine_ls_wR_factor_ref         0.1198
_reflns_Friedel_coverage         0.748
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                2679
_reflns_number_total             3681
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo6b00938_si_001.cif
_cod_data_source_block           sy498rt_a
_cod_database_code               4032006
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C009(H009), C00C(H00C), C00D(H00D), C00F(H00F), C00H(H00H), C00I(H00I),
 C00K(H00K), C00L(H00L), C00M(H00M), C00N(H00N), C00P(H00P), C00Q(H00Q),
 C00R(H00R), C00S(H00S)
2.b Idealised Me refined as rotating group:
 C00J(H00A,H00B,H00E), C00O(H00G,H00J,H00O)
;
_shelx_res_checksum              2793
_shelx_hkl_checksum              18266
_shelx_shelxl_version_number     2014/7
_olex2_submission_special_instructions 'No special instructions were received'