Copper-Catalyzed Synthesis of Azaspirocyclohexadienones from α-Azido-N-arylamides under an Oxygen Atmosphere
Shunsuke Chiba; Line Zhang; Jian-Yuan Lee; Journal of the American Chemical Society 132 (2010) 7266–7267; doi:10.1021/ja1027327

data_4102487
_publ_contact_author
;
Dr Shunsuke Chiba
Division of Chemistry and Biological Chemistry
School of Physical and Mathematical Sciences
Nanyang Technological University
21 Nanyang Link
Singapore 637371
Singapore
;
_publ_contact_author_email       shunsuke@ntu.edu.sg
_publ_contact_author_fax         '+65 6791 1961'
_publ_contact_author_phone       '+65 6513 8013'
_publ_section_title
;
 Copper-Catalyzed Synthesis of Azaspirocyclohexadienones from
 \a-Azido-N-arylamides under an Oxygen Atmosphere
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              7266
_journal_page_last               7267
_journal_paper_doi               10.1021/ja1027327
_journal_volume                  132
_journal_year                    2010
_chemical_formula_moiety         'C19 H14 N2 O2'
_chemical_formula_sum            'C19 H14 N2 O2'
_chemical_formula_weight         302.32
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                79.445(8)
_cell_angle_beta                 73.634(7)
_cell_angle_gamma                76.889(7)
_cell_formula_units_Z            2
_cell_length_a                   7.0717(9)
_cell_length_b                   10.4575(14)
_cell_length_c                   11.1343(15)
_cell_measurement_reflns_used    9445
_cell_measurement_temperature    103(2)
_cell_measurement_theta_max      34.36
_cell_measurement_theta_min      2.60
_cell_volume                     763.16(18)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      103(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0323
_diffrn_reflns_av_sigmaI/netI    0.0259
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            34983
_diffrn_reflns_theta_full        34.64
_diffrn_reflns_theta_max         34.64
_diffrn_reflns_theta_min         1.92
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_T_max  0.9931
_exptl_absorpt_correction_T_min  0.9661
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.316
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             316
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.539
_refine_diff_density_min         -0.319
_refine_diff_density_rms         0.099
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.060
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     209
_refine_ls_number_reflns         6466
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.0593
_refine_ls_R_factor_gt           0.0453
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0866P)^2^+0.0921P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1280
_refine_ls_wR_factor_ref         0.1430
_reflns_number_gt                5158
_reflns_number_total             6466
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja1027327_si_003.cif
_cod_data_source_block           4d_chiba20s
_cod_original_cell_volume        763.16(17)
_cod_database_code               4102487