Synthesis of Spiroketals by Synergistic Gold and Scandium Catalysis
Liang, Man; Zhang, Shuai; Jia, Jiong; Tung, Chen-Ho; Wang, Jianwu; Xu, Zhenghu; Organic Letters  (2017) –; doi:10.1021/acs.orglett.7b00804

data_1545993
_publ_section_title
;
 Synthesis of Spiroketals by Synergistic Gold and Scandium Catalysis
;
_journal_name_full               'Organic Letters'
_journal_paper_doi               10.1021/acs.orglett.7b00804
_journal_year                    2017
_chemical_formula_moiety         'C22 H18 O2'
_chemical_formula_sum            'C22 H18 O2'
_chemical_formula_weight         314.36
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2017-04-11
_audit_creation_method
;
Olex2 1.2
(compiled 2017.02.23 svn.r3390 for OlexSys, GUI svn.r5320)
;
_cell_angle_alpha                100.707(3)
_cell_angle_beta                 101.208(3)
_cell_angle_gamma                106.471(3)
_cell_formula_units_Z            2
_cell_length_a                   7.689(3)
_cell_length_b                   10.820(4)
_cell_length_c                   11.135(5)
_cell_measurement_reflns_used    2972
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      27.518
_cell_measurement_theta_min      2.862
_cell_volume                     842.4(6)
_computing_cell_refinement       'SAINT V8.30C (?, 2016)'
_computing_data_reduction        'SAINT V8.30C (?, 2016)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution
;
Superflip (Palatinus & Chapuis, 2007;Palatinus & van der Lee, 2008;
Palatinus et al., 2012)
;
_diffrn_ambient_temperature      298.15
_diffrn_detector_area_resol_mean 8
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker SMART APEX CCD area detector'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71000
_diffrn_reflns_av_R_equivalents  0.0252
_diffrn_reflns_av_unetI/netI     0.0263
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            9099
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.86
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    0.078
_exptl_absorpt_correction_T_max  0.9922
_exptl_absorpt_correction_T_min  0.9884
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_density_diffrn    1.239
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             332
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.109
_refine_diff_density_min         -0.202
_refine_diff_density_rms         0.037
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         2974
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0510
_refine_ls_R_factor_gt           0.0361
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0364P)^2^+0.1440P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0806
_refine_ls_wR_factor_ref         0.0891
_reflns_number_gt                2316
_reflns_number_total             2974
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol7b00804_si_003.cif
_cod_data_source_block           p
_cod_depositor_comments
;

2019-03-26
Z value and formula fixed to values more according to usual
chemical conventions.                 miguel
;
_cod_original_formula_moiety     '2(C22 H18 O2)'
_cod_original_formula_sum        'C44 H36 O4'
_cod_original_formula_units_Z    1
_cod_original_formula_weight     628.73
_cod_database_code               1545993
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
2.a Ternary CH refined with riding coordinates:
 C13(H13)
2.b Secondary CH2 refined with riding coordinates:
 C14(H14A,H14B), C18(H18A,H18B)
2.c Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C4(H4), C5(H5), C6(H6), C7(H7), C8(H8), C9(H9), C10(H10),
 C19(H19), C20(H20), C21(H21), C22(H22)
;
_olex2_submission_special_instructions 'No special instructions were received'