Cerium-Catalyzed, Oxidative Synthesis of Annulated, Tetrasubstituted Dihydrofuran-Derivatives
Geibel, Irina; Schmidtmann, Marc; Christoffers, Jens; Org. Biomol. Chem.  (2017) –; doi:10.1039/C7OB01904A

data_7155846
_publ_section_title
;
 Cerium-Catalyzed, Oxidative Synthesis of Annulated, Tetrasubstituted
 Dihydrofuran-Derivatives
;
_journal_name_full               'Org. Biomol. Chem.'
_journal_paper_doi               10.1039/C7OB01904A
_journal_year                    2017
_chemical_formula_structural     C11H14O6
_chemical_formula_sum            'C11 H14 O6'
_chemical_formula_weight         242.22
_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   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2017-06-29 deposited with the CCDC.
2017-08-23 downloaded from the CCDC.
;
_cell_angle_alpha                76.9720(13)
_cell_angle_beta                 81.6747(14)
_cell_angle_gamma                83.9592(14)
_cell_formula_units_Z            2
_cell_length_a                   7.7439(3)
_cell_length_b                   7.8264(3)
_cell_length_c                   9.1707(3)
_cell_measurement_reflns_used    9978
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      36.31
_cell_measurement_theta_min      2.67
_cell_volume                     534.27(3)
_computing_cell_refinement       'Bruker SAINT V8.34A'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT V8.34A'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-2013/1 (Sheldrick, 2013)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0196
_diffrn_reflns_av_unetI/netI     0.0126
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            27838
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         36.317
_diffrn_reflns_theta_min         2.297
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    0.124
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.9776
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS-2014/5 (Sheldrick)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.506
_exptl_crystal_description       plate
_exptl_crystal_F_000             256
_exptl_crystal_size_max          0.320
_exptl_crystal_size_mid          0.240
_exptl_crystal_size_min          0.120
_refine_diff_density_max         0.581
_refine_diff_density_min         -0.231
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     161
_refine_ls_number_reflns         5181
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0316
_refine_ls_R_factor_gt           0.0296
_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^)+(0.0500P)^2^+0.1000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0863
_refine_ls_wR_factor_ref         0.0879
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4819
_reflns_number_total             5181
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7ob01904a2.cif
_cod_data_source_block           ig266f2
_cod_database_code               7155846
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.962
_shelx_estimated_absorpt_t_max   0.985
_shelx_res_checksum              95006