Copper-Catalyzed Aerobic [3+2]-Annulation of N-Alkenyl Amidines
Yi-Feng Wang; Xu Zhu; Shunsuke Chiba; Journal of the American Chemical Society 134 (2012) 3679–3682; doi:10.1021/ja2120629

data_4117570
_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 Aerobic [3+2]-Annulation of N-Alkenyl Amidines
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              3679
_journal_page_last               3682
_journal_paper_doi               10.1021/ja2120629
_journal_volume                  134
_journal_year                    2012
_chemical_formula_moiety         'C28 H28 N2'
_chemical_formula_sum            'C28 H28 N2'
_chemical_formula_weight         392.52
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 112.927(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   18.3248(9)
_cell_length_b                   15.0664(8)
_cell_length_c                   16.5116(8)
_cell_measurement_reflns_used    4506
_cell_measurement_temperature    103(2)
_cell_measurement_theta_max      24.88
_cell_measurement_theta_min      2.52
_cell_volume                     4198.5(4)
_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 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0877
_diffrn_reflns_av_sigmaI/netI    0.0639
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            51903
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.81
_exptl_absorpt_coefficient_mu    0.072
_exptl_absorpt_correction_T_max  0.9843
_exptl_absorpt_correction_T_min  0.9731
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.242
_exptl_crystal_description       block
_exptl_crystal_F_000             1680
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.684
_refine_diff_density_min         -0.389
_refine_diff_density_rms         0.104
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     541
_refine_ls_number_reflns         8270
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.1113
_refine_ls_R_factor_gt           0.0755
_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^)+(0.1369P)^2^+1.3332P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1884
_refine_ls_wR_factor_ref         0.2267
_reflns_number_gt                5518
_reflns_number_total             8270
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja2120629_si_005.cif
_cod_data_source_block           2r_chiba187
_cod_database_code               4117570