Sequential rhodium-, silver-, and gold-catalyzed synthesis of fused dihydrofurans.
Wang, Hengbin; Denton, Justin R.; Davies, Huw M. L.; Organic letters 13 (2011) 4316–4319; doi:10.1021/ol2016548

data_1502358
_publ_section_title
;
 Sequential rhodium-, silver-, and gold-catalyzed synthesis of fused
 dihydrofurans.
;
_journal_issue                   16
_journal_name_full               'Organic letters'
_journal_page_first              4316
_journal_page_last               4319
_journal_paper_doi               10.1021/ol2016548
_journal_volume                  13
_journal_year                    2011
_chemical_formula_moiety         'C28 H20 O'
_chemical_formula_sum            'C28 H20 O'
_chemical_formula_weight         372.44
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_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_method           SHELXL-97
_cell_angle_alpha                79.8140(10)
_cell_angle_beta                 84.0220(10)
_cell_angle_gamma                74.0140(10)
_cell_formula_units_Z            2
_cell_length_a                   8.3369(2)
_cell_length_b                   10.0978(3)
_cell_length_c                   12.2085(3)
_cell_measurement_reflns_used    4008
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      65.84
_cell_measurement_theta_min      3.69
_cell_volume                     970.78(4)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.922
_diffrn_measured_fraction_theta_max 0.922
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
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_diffrn_radiation_type           CuK\a
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_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
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_diffrn_reflns_limit_l_min       -14
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_diffrn_reflns_theta_max         66.28
_diffrn_reflns_theta_min         3.68
_exptl_absorpt_coefficient_mu    0.584
_exptl_absorpt_correction_T_max  0.9227
_exptl_absorpt_correction_T_min  0.7832
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_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.274
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0570P)^2^+0.2000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0969
_refine_ls_wR_factor_ref         0.0996
_reflns_number_gt                2872
_reflns_number_total             3141
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol2016548_si_003.cif
_cod_data_source_block           hw_iii_065
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'MULTI-SCAN'
changed to 'multi-scan' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1502358