Assembly of isoxazol-5-one with 2-unsubstituted imidazole <i>N</i>-oxides and aldehydes.
Uvarova, Ekaterina S.; Kutasevich, Anton V.; Lipatov, Egor S.; Mityanov, Vitaly S.; Organic & biomolecular chemistry 21 (2023) 651–659; doi:10.1039/d2ob02157a

data_7159049
_publ_section_title
;
 Assembly of isoxazol-5-one with 2-unsubstituted imidazole <i>N</i>-oxides
 and aldehydes.
;
_journal_issue                   3
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              651
_journal_page_last               659
_journal_paper_doi               10.1039/d2ob02157a
_journal_volume                  21
_journal_year                    2023
_chemical_formula_moiety         'C22 H21 N3 O3'
_chemical_formula_sum            'C22 H21 N3 O3'
_chemical_formula_weight         375.42
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_date             2022-11-09
_audit_creation_method
;
Olex2 1.3
(compiled 2020.11.12 svn.r5f609507 for OlexSys, GUI svn.r6408)
;
_audit_update_record
;
2022-11-14 deposited with the CCDC.	2022-12-19 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 111.5230(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.13780(10)
_cell_length_b                   24.1686(4)
_cell_length_c                   10.0882(2)
_cell_measurement_reflns_used    7541
_cell_measurement_temperature    100
_cell_measurement_theta_max      30.49
_cell_measurement_theta_min      2.33
_cell_volume                     1845.79(5)
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL  (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.0
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker D8 Quest'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0411
_diffrn_reflns_av_unetI/netI     0.0316
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -32
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            24713
_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         28.992
_diffrn_reflns_theta_min         2.328
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  0.8622
_exptl_absorpt_correction_T_min  0.8153
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.1238 before and 0.0503 after correction.
The Ratio of minimum to maximum transmission is 0.9456.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.351
_exptl_crystal_description       prism
_exptl_crystal_F_000             792
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.396
_refine_diff_density_min         -0.357
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.024
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     256
_refine_ls_number_reflns         4899
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0536
_refine_ls_R_factor_gt           0.0421
_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^)+(0.0514P)^2^+0.7226P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1019
_refine_ls_wR_factor_ref         0.1092
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4028
_reflns_number_total             4899
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2ob02157a2.cif
_cod_data_source_block           uvar379
_cod_depositor_comments
'Adding full bibliography for 7159049--7159052.cif.'
_cod_database_code               7159049
_shelxl_version_number           2014/6
_shelx_estimated_absorpt_t_max   0.991
_shelx_estimated_absorpt_t_min   0.982
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All O(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Riding coordinates:
 O3(H3)
2.b Ternary CH refined with riding coordinates:
 C19(H19)
2.c Aromatic/amide H refined with riding coordinates:
 C4(H4), C2(H2), C10(H10), C12(H12), C1(H1), C7(H7), C9(H9), C6(H6), C8(H8),
 C5(H5)
2.d Idealised Me refined as rotating group:
 C21(H21A,H21B,H21C), C20(H20A,H20B,H20C), C22(H22A,H22B,H22C)
;
_shelx_res_checksum              58704
_olex2_submission_special_instructions 'No special instructions were received'