Scalable Total Synthesis of (-)-Vinigrol.
Yu, Xuerong; Xiao, Lianghong; Wang, Zechun; Luo, Tuoping; Journal of the American Chemical Society 141 (2019) 3440–3443; doi:10.1021/jacs.9b00621

data_4127805
_publ_section_title
;
 Scalable Total Synthesis of (-)-Vinigrol.
;
_journal_issue                   8
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              3440
_journal_page_last               3443
_journal_paper_doi               10.1021/jacs.9b00621
_journal_volume                  141
_journal_year                    2019
_chemical_absolute_configuration ad
_chemical_formula_sum            'C20 H32 O'
_chemical_formula_weight         288.45
_space_group_crystal_system      trigonal
_space_group_IT_number           145
_space_group_name_Hall           'P 32'
_space_group_name_H-M_alt        'P 32'
_symmetry_space_group_name_Hall  'P 32'
_symmetry_space_group_name_H-M   'P 32'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            3
_cell_length_a                   15.66720(10)
_cell_length_b                   15.66720(10)
_cell_length_c                   6.95210(10)
_cell_measurement_reflns_used    3324
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      68.6100
_cell_measurement_theta_min      5.3010
_cell_volume                     1477.85(3)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device       'abstract diffractometer'
_diffrn_measurement_device_type
'dtrek-CrysAlisPro-abstract goniometer imported rigaku-d*trek images'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0896
_diffrn_reflns_av_unetI/netI     0.0438
_diffrn_reflns_Laue_measured_fraction_full 0.993
_diffrn_reflns_Laue_measured_fraction_max 0.990
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            46367
_diffrn_reflns_point_group_measured_fraction_full 0.973
_diffrn_reflns_point_group_measured_fraction_max 0.967
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         68.710
_diffrn_reflns_theta_min         3.257
_diffrn_source                   'fine-focus sealed X-ray tube'
_diffrn_source_type              'Enhance (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    0.431
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    0.972
_exptl_crystal_description       block
_exptl_crystal_F_000             480
_refine_diff_density_max         0.163
_refine_diff_density_min         -0.186
_refine_diff_density_rms         0.037
_refine_ls_abs_structure_details
;
 Flack x determined using 1188 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.1(2)
_refine_ls_extinction_coef       0.0079(16)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   1.075
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     199
_refine_ls_number_reflns         3324
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.083
_refine_ls_R_factor_all          0.0585
_refine_ls_R_factor_gt           0.0501
_refine_ls_shift/su_max          0.010
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0811P)^2^+0.0226P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1217
_refine_ls_wR_factor_ref         0.1303
_reflns_Friedel_coverage         0.953
_reflns_Friedel_fraction_full    0.953
_reflns_Friedel_fraction_max     0.943
_reflns_number_gt                2981
_reflns_number_total             3324
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja9b00621_si_007.cif
_cod_data_source_block           S8_sq
_cod_database_code               4127805
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              80281
_shelx_hkl_checksum              49934
_shelx_fab_checksum              23760