Au-Catalyzed Skeletal Rearrangement of O-Propargylic Oximes via N-O Bond Cleavage with the Aid of a Brønsted Base Cocatalyst
Shiga, Keigo; Gridnev, Ilya D.; Terada, Masahiro; Nakamura, Itaru; Chemical Science  (2019) –; doi:10.1039/C9SC00501C

data_1550913
_publ_section_title
;
 Au-Catalyzed Skeletal Rearrangement of O-Propargylic Oximes via N-O Bond
 Cleavage with the Aid of a Br\/onsted Base Cocatalyst
;
_journal_name_full               'Chemical Science'
_journal_paper_doi               10.1039/C9SC00501C
_journal_year                    2019
_chemical_absolute_configuration 'CHOOSE rm ad rmad syn or unk'
_chemical_formula_moiety         'C26 H18 N2 O3'
_chemical_formula_sum            'C26 H18 N2 O3'
_chemical_formula_weight         406.44
_space_group_crystal_system      orthorhombic
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_update_record
;
2019-01-22 deposited with the CCDC.    2019-04-17 downloaded from the CCDC.
;
_cell_angle_alpha                90.0000
_cell_angle_beta                 90.0000
_cell_angle_gamma                90.0000
_cell_formula_units_Z            4
_cell_length_a                   22.596(3)
_cell_length_b                   3.8694(5)
_cell_length_c                   22.166(3)
_cell_measurement_reflns_used    17352
_cell_measurement_temperature    150
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      3.30
_cell_volume                     1938.0(4)
_computing_cell_refinement       'CrystalClear-SM Auto 2.0 r15'
_computing_data_collection       'CrystalClear-SM Auto 2.0 r15 (Rigaku, 2011)'
_computing_data_reduction        'CrystalClear-SM Auto 2.0 r15'
_computing_molecular_graphics    'CrystalStructure 4.1'
_computing_publication_material  'CrystalStructure 4.1 (Rigaku, 2014)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'Il Milione (Burla, et al., 2007)'
_diffrn_ambient_temperature      150
_diffrn_detector_area_resol_mean 13.653
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku XtaLAB mini'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0350
_diffrn_reflns_Laue_measured_fraction_full 0.000
_diffrn_reflns_Laue_measured_fraction_max 0.000
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            18117
_diffrn_reflns_point_group_measured_fraction_full 0.000
_diffrn_reflns_point_group_measured_fraction_max 0.000
_diffrn_reflns_theta_full        27.480
_diffrn_reflns_theta_max         27.480
_diffrn_reflns_theta_min         3.295
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  0.998
_exptl_absorpt_correction_T_min  0.860
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'REQAB (Rigaku, 1998)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.393
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             848.00
_exptl_crystal_size_max          0.300
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.020
_refine_diff_density_max         0.20
_refine_diff_density_min         -0.20
_refine_ls_abs_structure_details
'Flack, H. D. (1983), Acta Cryst. A39, 876-881.  2133 Friedel Pairs'
_refine_ls_abs_structure_Flack   0.2(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.072
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     280
_refine_ls_number_reflns         4389
_refine_ls_number_restraints     1
_refine_ls_R_factor_all          0.0411
_refine_ls_R_factor_gt           0.0366
_refine_ls_shift/su_max          0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0420P)^2^+0.2923P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0830
_refine_ls_wR_factor_ref         0.0852
_reflns_number_gt                4042
_reflns_number_total             4389
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            c9sc00501c2.cif
_cod_data_source_block           01
_cod_database_code               1550913