Radical Borylation/Cyclization Cascade of 1,6-Enynes for the Synthesis of Boron-Handled Hetero- and Carbocycles.
Ren, Shi-Chao; Zhang, Feng-Lian; Qi, Jing; Huang, Yun-Shuai; Xu, Ai-Qing; Yan, Hong-Yi; Wang, Yi-Feng; Journal of the American Chemical Society 139 (2017) 6050–6053; doi:10.1021/jacs.7b01889

data_4125940
_publ_section_title
;
 Radical Borylation/Cyclization Cascade of 1,6-Enynes for the Synthesis of
 Boron-Handled Hetero- and Carbocycles.
;
_journal_issue                   17
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              6050
_journal_page_last               6053
_journal_paper_doi               10.1021/jacs.7b01889
_journal_volume                  139
_journal_year                    2017
_chemical_absolute_configuration ad
_chemical_formula_sum            'C27 H34 B N3 O2 S'
_chemical_formula_weight         475.44
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                90
_cell_angle_beta                 104.0680(10)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   9.46590(10)
_cell_length_b                   8.50700(10)
_cell_length_c                   16.6850(2)
_cell_measurement_reflns_used    4163
_cell_measurement_temperature    292(2)
_cell_measurement_theta_max      71.1720
_cell_measurement_theta_min      5.8560
_cell_volume                     1303.29(3)
_computing_cell_refinement       'CrysAlisPro (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro (Rigaku OD, 2015)'
_computing_molecular_graphics    'Ortep-3 (L. J. Farrugia, 2001)'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      292(2)
_diffrn_detector_area_resol_mean 5.2169
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.969
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, AtlasS2'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0112
_diffrn_reflns_av_unetI/netI     0.0175
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.969
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            5116
_diffrn_reflns_point_group_measured_fraction_full 0.759
_diffrn_reflns_point_group_measured_fraction_max 0.731
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         71.260
_diffrn_reflns_theta_min         4.816
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    1.318
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.76886
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.43f (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_density_diffrn    1.212
_exptl_crystal_description       block
_exptl_crystal_F_000             508
_exptl_crystal_size_max          0.250
_exptl_crystal_size_mid          0.210
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.452
_refine_diff_density_min         -0.442
_refine_diff_density_rms         0.040
_refine_ls_abs_structure_details
;
 Flack x determined using 1050 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons and Flack (2004), Acta Cryst. A60, s61).
;
_refine_ls_abs_structure_Flack   0.017(18)
_refine_ls_extinction_coef       0.0076(12)
_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   1.075
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     311
_refine_ls_number_reflns         3711
_refine_ls_number_restraints     15
_refine_ls_restrained_S_all      1.168
_refine_ls_R_factor_all          0.0447
_refine_ls_R_factor_gt           0.0441
_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^)+(0.0883P)^2^+0.1782P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1281
_refine_ls_wR_factor_ref         0.1291
_reflns_Friedel_coverage         0.408
_reflns_Friedel_fraction_full    0.486
_reflns_Friedel_fraction_max     0.457
_reflns_number_gt                3636
_reflns_number_total             3711
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            3p.cif
_cod_data_source_block           shelxl
_cod_depositor_comments
'Adding full bibliography for 4125939--4125941.cif.'
_cod_database_code               4125940
_shelx_estimated_absorpt_t_min   0.734
_shelx_estimated_absorpt_t_max   0.779
_shelxl_version_number           2013-4
_shelx_res_checksum              76975
_shelx_hkl_checksum              79677