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_4030061
_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         'C27 H22 O2'
_chemical_formula_sum            'C27 H22 O2'
_chemical_formula_weight         378.45
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_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                66.136(3)
_cell_angle_beta                 76.156(3)
_cell_angle_gamma                73.462(3)
_cell_formula_units_Z            2
_cell_length_a                   7.7829(4)
_cell_length_b                   11.0201(6)
_cell_length_c                   13.5855(8)
_cell_measurement_reflns_used    3856
_cell_measurement_temperature    103(2)
_cell_measurement_theta_max      30.51
_cell_measurement_theta_min      2.91
_cell_volume                     1011.22(10)
_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  0.0417
_diffrn_reflns_av_sigmaI/netI    0.0555
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            16861
_diffrn_reflns_theta_full        31.42
_diffrn_reflns_theta_max         31.42
_diffrn_reflns_theta_min         1.66
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  0.9803
_exptl_absorpt_correction_T_min  0.9699
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.243
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             400
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.26
_refine_diff_density_max         0.487
_refine_diff_density_min         -0.416
_refine_diff_density_rms         0.112
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.078
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     263
_refine_ls_number_reflns         6560
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.078
_refine_ls_R_factor_all          0.0836
_refine_ls_R_factor_gt           0.0586
_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^)+(0.1059P)^2^+0.0397P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1592
_refine_ls_wR_factor_ref         0.1867
_reflns_number_gt                4770
_reflns_number_total             6560
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo5020195_si_004.cif
_cod_data_source_block           chan227
_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               4030061