Asymmetric Cascade Annulation Based on Enantioselective Oxa-Diels-Alder Cycloaddition of in Situ Generated Isochromenyliums by Cooperative Binary Catalysis of Pd(OAc)2 and (S)-Trip
Shu-Yan Yu; Hao Zhang; Yang Gao; Lei Mo; Shaozhong Wang; Zhu-Jun Yao; Journal of the American Chemical Society 135 (2013) 11402–11407; doi:10.1021/ja405764p

data_4120230
_publ_section_title
;
 Asymmetric Cascade Annulation Based on Enantioselective Oxa-Diels-Alder
 Cycloaddition of in Situ Generated Isochromenyliums by Cooperative Binary
 Catalysis of Pd(OAc)2 and (S)-Trip
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              11402
_journal_page_last               11407
_journal_paper_doi               10.1021/ja405764p
_journal_volume                  135
_journal_year                    2013
_chemical_absolute_configuration .ad
_chemical_formula_sum            'C30 H30 O4'
_chemical_formula_weight         454.54
_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                   10.174
_cell_length_b                   11.562
_cell_length_c                   20.412
_cell_measurement_reflns_used    7039
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      67.18
_cell_measurement_theta_min      4.33
_cell_volume                     2401.100
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 0.973
_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           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.1198
_diffrn_reflns_av_sigmaI/netI    0.0732
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            11494
_diffrn_reflns_theta_full        67.66
_diffrn_reflns_theta_max         67.66
_diffrn_reflns_theta_min         4.33
_exptl_absorpt_coefficient_mu    0.655
_exptl_absorpt_correction_T_max  0.8277
_exptl_absorpt_correction_T_min  0.8277
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.257
_exptl_crystal_description       block
_exptl_crystal_F_000             968
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.239
_refine_diff_density_min         -0.366
_refine_diff_density_rms         0.081
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.1(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.124
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     355
_refine_ls_number_reflns         4121
_refine_ls_number_restraints     22
_refine_ls_restrained_S_all      1.128
_refine_ls_R_factor_all          0.0723
_refine_ls_R_factor_gt           0.0660
_refine_ls_shift/su_max          0.058
_refine_ls_shift/su_mean         0.006
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1001P)^2^+0.5563P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1695
_refine_ls_wR_factor_ref         0.1923
_reflns_number_gt                3702
_reflns_number_total             4121
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja405764p_si_005.cif
_cod_data_source_block           w1
_cod_original_cell_volume        2401.1
_cod_original_sg_symbol_H-M      'P 21 21 21 '
_cod_database_code               4120230