Diastereo- and Enantioselective Synthesis of Eight-Membered Heterocycles via an Allylation/Ring Expansion Sequence Enabled by Multiple Catalysis
Yang, Wu-Lin; Wang, Yuan-Lin; Li, Wen; Gu, Bu-Ming; Wang, Si-Wen; Luo, Xiaoyan; Tian, Bo-Xue; Deng, Wei-Ping; ACS Catalysis  (2021) 12557–12564; doi:10.1021/acscatal.1c03711

data_4519058
_publ_section_title
;
 Diastereo- and Enantioselective Synthesis of Eight-Membered Heterocycles
 via an Allylation/Ring Expansion Sequence Enabled by Multiple Catalysis
;
_journal_name_full               'ACS Catalysis'
_journal_page_first              12557
_journal_page_last               12564
_journal_paper_doi               10.1021/acscatal.1c03711
_journal_year                    2021
_chemical_absolute_configuration ad
_chemical_formula_sum            'C26 H29 N O5'
_chemical_formula_weight         435.50
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.21010(10)
_cell_length_b                   12.4785(2)
_cell_length_c                   26.7627(5)
_cell_measurement_reflns_used    8964
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      140.273
_cell_measurement_theta_min      9.692
_cell_volume                     2407.87(7)
_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-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.980
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0343
_diffrn_reflns_av_unetI/netI     0.0283
_diffrn_reflns_Laue_measured_fraction_full 0.980
_diffrn_reflns_Laue_measured_fraction_max 0.982
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            16463
_diffrn_reflns_point_group_measured_fraction_full 0.981
_diffrn_reflns_point_group_measured_fraction_max 0.983
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         67.498
_diffrn_reflns_theta_min         4.846
_exptl_absorpt_coefficient_mu    0.673
_exptl_absorpt_correction_T_max  0.7533
_exptl_absorpt_correction_T_min  0.5655
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.201
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             928
_exptl_crystal_size_max          0.170
_exptl_crystal_size_mid          0.140
_exptl_crystal_size_min          0.110
_refine_diff_density_max         0.189
_refine_diff_density_min         -0.119
_refine_diff_density_rms         0.026
_refine_ls_abs_structure_details
; 
 Flack x determined using 1542 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons and Flack (2004), Acta Cryst. A60, s61). 
;
_refine_ls_abs_structure_Flack   0.00(8)
_refine_ls_extinction_coef       0.015(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.022
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     302
_refine_ls_number_reflns         4272
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.022
_refine_ls_R_factor_all          0.0429
_refine_ls_R_factor_gt           0.0389
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0646P)^2^+0.2026P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1058
_refine_ls_wR_factor_ref         0.1109
_reflns_Friedel_coverage         0.735
_reflns_Friedel_fraction_full    0.982
_reflns_Friedel_fraction_max     0.984
_reflns_number_gt                3924
_reflns_number_total             4272
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cs1c03711_si_005.cif
_cod_data_source_block           cu_d8v20604_0m
_cod_database_code               4519058
_shelx_estimated_absorpt_t_min   0.894
_shelx_estimated_absorpt_t_max   0.930
_shelxl_version_number           2013-4
_shelx_res_checksum              58802
_shelx_hkl_checksum              98882