Scalable Synthesis of Cyclocitrinol.
Wang, Yu; Ju, Wei; Tian, Hailong; Tian, Weisheng; Gui, Jinghan; Journal of the American Chemical Society 140 (2018) 9413–9416; doi:10.1021/jacs.8b06444

data_4132786
_publ_section_title
;
 Scalable Synthesis of Cyclocitrinol.
;
_journal_issue                   30
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9413
_journal_page_last               9416
_journal_paper_doi               10.1021/jacs.8b06444
_journal_volume                  140
_journal_year                    2018
_chemical_absolute_configuration ad
_chemical_formula_sum            'C23 H30 O4'
_chemical_formula_weight         370.47
_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   geom
_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                   6.70030(10)
_cell_length_b                   14.5512(3)
_cell_length_c                   20.4826(4)
_cell_measurement_reflns_used    9895
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      140.199
_cell_measurement_theta_min      12.913
_cell_volume                     1997.00(6)
_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 0.954
_diffrn_measured_fraction_theta_max 0.981
_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  0.0287
_diffrn_reflns_av_unetI/netI     0.0221
_diffrn_reflns_Laue_measured_fraction_full 0.954
_diffrn_reflns_Laue_measured_fraction_max 0.981
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            16139
_diffrn_reflns_point_group_measured_fraction_full 0.956
_diffrn_reflns_point_group_measured_fraction_max 0.985
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         66.500
_diffrn_reflns_theta_min         6.456
_exptl_absorpt_coefficient_mu    0.662
_exptl_absorpt_correction_T_max  0.7533
_exptl_absorpt_correction_T_min  0.6267
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.232
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             800
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.160
_exptl_crystal_size_min          0.120
_refine_diff_density_max         0.217
_refine_diff_density_min         -0.204
_refine_diff_density_rms         0.028
_refine_ls_abs_structure_details
; 
 Flack x determined using 1398 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons and Flack (2004), Acta Cryst. A60, s61). 
;
_refine_ls_abs_structure_Flack   0.06(6)
_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   1.051
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     248
_refine_ls_number_reflns         3452
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0382
_refine_ls_R_factor_gt           0.0374
_refine_ls_shift/su_max          0.009
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0656P)^2^+0.2553P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1049
_refine_ls_wR_factor_ref         0.1059
_reflns_Friedel_coverage         0.729
_reflns_Friedel_fraction_full    0.960
_reflns_Friedel_fraction_max     0.990
_reflns_number_gt                3375
_reflns_number_total             3452
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja8b06444_si_002.cif
_cod_data_source_block           cu_d8v17566_0m
_cod_database_code               4132786
_shelx_estimated_absorpt_t_min   0.879
_shelx_estimated_absorpt_t_max   0.925
_shelxl_version_number           2013-4
_shelx_res_checksum              58954
_shelx_hkl_checksum              68941