Gold-catalyzed cycloisomerization of 1,6-diyne esters to 1H-cyclopenta[b]naphthalenes, cis-cyclopenten-2-yl δ-diketones, and bicyclo[3.2.0]hepta-1,5-dienes.
Li, Dan; Rao, Weidong; Tay, Guan Liang; Ayers, Benjamin James; Chan, Philip Wai Hong; The Journal of organic chemistry 79 (2014) 11301–11315; doi:10.1021/jo5020195

data_4030057
_publ_section_title
;
 Gold-catalyzed cycloisomerization of 1,6-diyne esters to
 1H-cyclopenta[b]naphthalenes, cis-cyclopenten-2-yl \d-diketones, and
 bicyclo[3.2.0]hepta-1,5-dienes.
;
_journal_issue                   23
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              11301
_journal_page_last               11315
_journal_paper_doi               10.1021/jo5020195
_journal_volume                  79
_journal_year                    2014
_chemical_formula_moiety         'C25 H18'
_chemical_formula_sum            'C25 H18'
_chemical_formula_weight         318.39
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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                71.447(2)
_cell_angle_beta                 67.341(3)
_cell_angle_gamma                65.481(2)
_cell_formula_units_Z            2
_cell_length_a                   9.3651(5)
_cell_length_b                   9.5625(5)
_cell_length_c                   11.0503(6)
_cell_measurement_reflns_used    4388
_cell_measurement_temperature    103(2)
_cell_measurement_theta_max      30.85
_cell_measurement_theta_min      2.50
_cell_volume                     815.96(8)
_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-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      103(2)
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0383
_diffrn_reflns_av_sigmaI/netI    0.0471
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            14951
_diffrn_reflns_theta_full        31.03
_diffrn_reflns_theta_max         31.03
_diffrn_reflns_theta_min         2.03
_exptl_absorpt_coefficient_mu    0.073
_exptl_absorpt_correction_T_max  0.9855
_exptl_absorpt_correction_T_min  0.9713
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.296
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             336
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.483
_refine_diff_density_min         -0.303
_refine_diff_density_rms         0.089
_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     226
_refine_ls_number_reflns         5119
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0689
_refine_ls_R_factor_gt           0.0527
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0943P)^2^+0.0787P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1391
_refine_ls_wR_factor_ref         0.1573
_reflns_number_gt                4044
_reflns_number_total             5119
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo5020195_si_003.cif
_cod_data_source_block           chan225
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/home/saulius/struct/COD-crude-data--automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2827 2014-09-09 07:05:25Z andrius 

 Adding full bibliography for 4030057--4030064.cif.
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4030057