Combined experimental and theoretical studies of regio- and stereoselectivity in reactions of β-isoxazolyl- and β-imidazolyl enamines with nitrile oxides
Efimov, Ilya V.; Shafikov, Marsel Z.; Beliaev, Nikolai A.; Volkova, Natalia N.; Beryozkina, Tetyana V.; Dehaen, Wim; Fan, Zhijin; Grishko, Viktoria V.; Lubec, Gert; Slepukhin, Pavel A.; Bakulev, Vasiliy A.; Beilstein Journal of Organic Chemistry 12 (2016) 2390–; doi:10.3762/bjoc.12.233

data_4032063
_publ_section_title
;
 Combined experimental and theoretical studies of regio- and
 stereoselectivity in reactions of \b-isoxazolyl- and \b-imidazolyl
 enamines with nitrile oxides
;
_journal_name_full               'Beilstein Journal of Organic Chemistry'
_journal_page_first              2390
_journal_paper_doi               10.3762/bjoc.12.233
_journal_volume                  12
_journal_year                    2016
_chemical_formula_moiety         'C20 H15 N3 O4'
_chemical_formula_sum            'C20 H15 N3 O4'
_chemical_formula_weight         361.35
_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   geom
_atom_sites_solution_primary     iterative
_atom_sites_solution_secondary   difmap
_audit_creation_date             2014-10-10
_audit_creation_method
;
  Olex2 1.2-ac2
  (compiled 2012.03.27 svn.r2268, GUI svn.r4156)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 101.183(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.9292(3)
_cell_length_b                   12.2608(4)
_cell_length_c                   15.9631(6)
_cell_measurement_reflns_used    3353
_cell_measurement_temperature    150.00(10)
_cell_measurement_theta_max      30.7490
_cell_measurement_theta_min      2.2090
_cell_volume                     1714.44(10)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
;
_computing_molecular_graphics
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_publication_material
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_structure_refinement
;
SHELXL, G.M. Sheldrick, Acta Cryst.
(2008). A64, 112-122
;
_computing_structure_solution    'J. Appl. Cryst. (2007) 40, 786-790'
_diffrn_ambient_temperature      150.00(10)
_diffrn_detector_area_resol_mean 15.9555
_diffrn_measured_fraction_theta_full 0.9996
_diffrn_measured_fraction_theta_max 0.8778
_diffrn_measurement_details
;
  1 omega   37.00   80.00   1.0000    9.1600
omega____ theta____ kappa____ phi______ frames
    -       23.2924  178.0000  -90.0000 43

  2 omega  -37.00   92.00   1.0000    9.1600
omega____ theta____ kappa____ phi______ frames
    -       23.2924    0.0000 -180.0000 129

  3 omega    2.00   60.00   1.0000    9.1600
omega____ theta____ kappa____ phi______ frames
    -       23.2924   57.0000   60.0000 58
;
_diffrn_measurement_device_type  'Xcalibur, Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_UB_11      -0.0714724000
_diffrn_orient_matrix_UB_12      0.0186745000
_diffrn_orient_matrix_UB_13      0.0074186000
_diffrn_orient_matrix_UB_21      0.0364687000
_diffrn_orient_matrix_UB_22      0.0217943000
_diffrn_orient_matrix_UB_23      0.0399053000
_diffrn_orient_matrix_UB_31      0.0107957000
_diffrn_orient_matrix_UB_32      0.0502522000
_diffrn_orient_matrix_UB_33      -0.0200669000
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.0263
_diffrn_reflns_av_unetI/netI     0.0419
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            8807
_diffrn_reflns_theta_full        28.00
_diffrn_reflns_theta_max         30.76
_diffrn_reflns_theta_min         2.33
_diffrn_source                   'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.100
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.88742
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.400
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             752
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.313
_refine_diff_density_min         -0.278
_refine_diff_density_rms         0.058
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.008
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     285
_refine_ls_number_reflns         4683
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.008
_refine_ls_R_factor_all          0.0589
_refine_ls_R_factor_gt           0.0453
_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^)+(0.0830P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1209
_refine_ls_wR_factor_ref         0.1333
_reflns_number_gt                3759
_reflns_number_total             4683
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            1860-5397-12-233-S4.cif
_cod_data_source_block           exp_236
_cod_original_cell_volume        1714.45(10)
_cod_database_code               4032063
_chemical_oxdiff_formula         C20H10NO
_reflns_odcompleteness_completeness 99.96
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     28.22