Fe(II)-Catalyzed Isomerization of 5-Chloroisoxazoles to 2 H-Azirine-2-carbonyl Chlorides as a Key Stage in the Synthesis of Pyrazole-Nitrogen Heterocycle Dyads.
Mikhailov, Kirill I.; Galenko, Ekaterina E.; Galenko, Alexey V.; Novikov, Mikhail S.; Ivanov, Alexander Yu; Starova, Galina L.; Khlebnikov, Alexander F.; The Journal of organic chemistry 83 (2018) 3177–3187; doi:10.1021/acs.joc.8b00069

data_4033522
_publ_section_title
;
 Fe(II)-Catalyzed Isomerization of 5-Chloroisoxazoles to 2
 H-Azirine-2-carbonyl Chlorides as a Key Stage in the Synthesis of
 Pyrazole-Nitrogen Heterocycle Dyads.
;
_journal_issue                   6
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              3177
_journal_page_last               3187
_journal_paper_doi               10.1021/acs.joc.8b00069
_journal_volume                  83
_journal_year                    2018
_chemical_formula_moiety         'C19 H15 N3 O2'
_chemical_formula_sum            'C19 H15 N3 O2'
_chemical_formula_weight         317.34
_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'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     iterative
_audit_creation_date             2017-05-10
_audit_creation_method
;
Olex2 1.2
(compiled 2017.03.28 svn.r3405 for OlexSys, GUI svn.r5335)
;
_cell_angle_alpha                90
_cell_angle_beta                 99.444(4)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.8169(5)
_cell_length_b                   7.2190(3)
_cell_length_c                   16.4865(6)
_cell_measurement_reflns_used    4655
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      31.0020
_cell_measurement_theta_min      3.8180
_cell_volume                     1504.74(10)
_computing_cell_refinement       'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution
;
Superflip (Palatinus & Chapuis, 2007;Palatinus & van der Lee, 2008;
Palatinus et al., 2012)
;
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 10.3829
_diffrn_detector_type            Atlas
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
--------------------------------------------------------------------------
  1  \w      8.00  46.00   1.00   11.28    --   15.80  57.00  60.00   38
  2  \w     37.00  86.00   1.00   11.28    --   15.80  38.00 150.00   49
  3  \w    -19.00  13.00   1.00   11.28    --  -13.93 -99.00 -30.00   32
  4  \w    -20.00  10.00   1.00   11.28    --   15.80 -99.00  30.00   30
  5  \w    -38.00  37.00   1.00   11.28    --   15.80 -77.00-120.00   75
  6  \w     -4.00  48.00   1.00   11.28    --  -13.93  38.00-180.00   52
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      0.0116575000
_diffrn_orient_matrix_UB_12      -0.0103846000
_diffrn_orient_matrix_UB_13      -0.0403595000
_diffrn_orient_matrix_UB_21      -0.0548579000
_diffrn_orient_matrix_UB_22      0.0006970000
_diffrn_orient_matrix_UB_23      -0.0160627000
_diffrn_orient_matrix_UB_31      0.0016608000
_diffrn_orient_matrix_UB_32      0.0976575000
_diffrn_orient_matrix_UB_33      -0.0041383000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0265
_diffrn_reflns_av_unetI/netI     0.0314
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            10110
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.496
_diffrn_reflns_theta_min         3.087
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.093
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.72566
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.46 (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.401
_exptl_crystal_description       prizm
_exptl_crystal_F_000             664
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.290
_refine_diff_density_min         -0.268
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     218
_refine_ls_number_reflns         3463
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0515
_refine_ls_R_factor_gt           0.0408
_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^)+(0.0425P)^2^+0.5740P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0951
_refine_ls_wR_factor_ref         0.1028
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2863
_reflns_number_total             3463
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo8b00069_si_005.cif
_cod_data_source_block           103-7060-6713_meo_ox
_cod_depositor_comments
'Adding full bibliography for 4033521--4033522.cif.'
_cod_original_cell_volume        1504.75(10)
_cod_database_code               4033522
_shelx_shelxl_version_number     2014/7
_reflns_odcompleteness_completeness 99.81
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     28.51
_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:
 C22(H22), C21(H21), C16(H16), C10(H10), C2(H2), C18(H18), C15(H15), C6(H6),
 C4(H4), C3(H3), C19(H19), C5(H5)
2.b Idealised Me refined as rotating group:
 C24(H24A,H24B,H24C)
;
_shelx_res_checksum              94521
_shelx_hkl_checksum              280
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.515
_oxdiff_exptl_absorpt_empirical_full_min 0.490