Highly Diastereo- and Enantioselective Cu-Catalyzed [3 + 3] Cycloaddition of Propargyl Esters with Cyclic Enamines toward Chiral Bicyclo[n.3.1] Frameworks
Cheng Zhang; Xin-Hu Hu; Ya-Hui Wang; Zhuo Zheng; Jie Xu; Xiang-Ping Hu; Journal of the American Chemical Society 134 (2012) 9585–9588; doi:10.1021/ja303129s

data_4118053
_publ_section_title
;
 Highly Diastereo- and Enantioselective Cu-Catalyzed [3 + 3] Cycloaddition
 of Propargyl Esters with Cyclic Enamines toward Chiral Bicyclo[n.3.1]
 Frameworks
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9585
_journal_page_last               9588
_journal_paper_doi               10.1021/ja303129s
_journal_volume                  134
_journal_year                    2012
_chemical_absolute_configuration unk
_chemical_formula_sum            'C21 H30 N2 O'
_chemical_formula_weight         326.47
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.4936(7)
_cell_length_b                   12.4907(11)
_cell_length_c                   19.9825(18)
_cell_measurement_reflns_used    7184
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.99
_cell_measurement_theta_min      2.61
_cell_volume                     1870.4(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0260
_diffrn_reflns_av_sigmaI/netI    0.0226
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            16251
_diffrn_reflns_theta_full        27.60
_diffrn_reflns_theta_max         27.60
_diffrn_reflns_theta_min         1.92
_exptl_absorpt_coefficient_mu    0.071
_exptl_absorpt_correction_T_max  0.9908
_exptl_absorpt_correction_T_min  0.9887
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.159
_exptl_crystal_description       block
_exptl_crystal_F_000             712
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.135
_refine_diff_density_min         -0.141
_refine_diff_density_rms         0.029
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.5(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.077
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     218
_refine_ls_number_reflns         4331
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.077
_refine_ls_R_factor_all          0.0504
_refine_ls_R_factor_gt           0.0403
_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^)+(0.0800P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1172
_refine_ls_wR_factor_ref         0.1255
_reflns_number_gt                3598
_reflns_number_total             4331
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja303129s_si_001.cif
_cod_data_source_block           120328c_0m
_cod_database_code               4118053