Rh(i)-Catalyzed stereoselective intramolecular cycloaddition reactions of ene-vinylidenecyclopropanes for the construction of fused 6,5-bicyclic skeletons with a quaternary all-carbon stereocenter
Rui, Kang-Hua; Yang, Song; Wei, Yin; Shi, Min; Organic Chemistry Frontiers 6 (2019) 2506–; doi:10.1039/C9QO00611G

data_1554962
_publ_section_title
;
 Rh(i)-Catalyzed stereoselective intramolecular cycloaddition reactions of
 ene-vinylidenecyclopropanes for the construction of fused 6,5-bicyclic
 skeletons with a quaternary all-carbon stereocenter
;
_journal_issue                   14
_journal_name_full               'Organic Chemistry Frontiers'
_journal_page_first              2506
_journal_paper_doi               10.1039/C9QO00611G
_journal_volume                  6
_journal_year                    2019
_chemical_absolute_configuration ad
_chemical_formula_sum            'C20 H27 N O2 S'
_chemical_formula_weight         345.48
_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
_audit_update_record
;
2018-02-09 deposited with the CCDC.	2019-05-28 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.8832(2)
_cell_length_b                   8.7875(2)
_cell_length_c                   37.5443(11)
_cell_measurement_reflns_used    5004
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      53.224
_cell_measurement_theta_min      6.351
_cell_volume                     1940.99(10)
_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      296(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0288
_diffrn_reflns_av_unetI/netI     0.0345
_diffrn_reflns_Laue_measured_fraction_full 0.988
_diffrn_reflns_Laue_measured_fraction_max 0.989
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       46
_diffrn_reflns_limit_l_min       -44
_diffrn_reflns_number            10672
_diffrn_reflns_point_group_measured_fraction_full 0.991
_diffrn_reflns_point_group_measured_fraction_max 0.991
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.996
_diffrn_reflns_theta_min         3.176
_exptl_absorpt_coefficient_mu    0.178
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6188
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.182
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             744
_exptl_crystal_size_max          0.190
_exptl_crystal_size_mid          0.150
_exptl_crystal_size_min          0.130
_refine_diff_density_max         0.134
_refine_diff_density_min         -0.191
_refine_diff_density_rms         0.027
_refine_ls_abs_structure_details
; 
 Flack x determined using 1088 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons and Flack (2004), Acta Cryst. A60, s61). 
;
_refine_ls_abs_structure_Flack   -0.02(3)
_refine_ls_extinction_coef       0.020(9)
_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   1.024
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     230
_refine_ls_number_reflns         3773
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0520
_refine_ls_R_factor_gt           0.0415
_refine_ls_shift/su_max          0.030
_refine_ls_shift/su_mean         0.009
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0695P)^2^+0.0867P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1086
_refine_ls_wR_factor_ref         0.1175
_reflns_Friedel_coverage         0.696
_reflns_Friedel_fraction_full    0.994
_reflns_Friedel_fraction_max     0.994
_reflns_number_gt                3176
_reflns_number_total             3773
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9qo00611g2.cif
_cod_data_source_block           mo_d8v18177_0m
_cod_database_code               1554962
_shelx_estimated_absorpt_t_min   0.967
_shelx_estimated_absorpt_t_max   0.977
_shelxl_version_number           2013-4
_shelx_res_checksum              49747
_shelx_hkl_checksum              47787