Copper-catalyzed cascade annulation between α-bromocarbonyls and biaryl or (Z)-arylvinylacetylenes enabling a direct synthesis of dibenzocycloheptanes and related compounds.
Lu, Danyang; Wan, Yimei; Kong, Lichun; Zhu, Gangguo; Chemical communications (Cambridge, England) 52 (2016) 13971–13974; doi:10.1039/c6cc07727g

data_7125223
_publ_section_title
;
 Copper-catalyzed cascade annulation between \a-bromocarbonyls and biaryl
 or (Z)-arylvinylacetylenes enabling a direct synthesis of
 dibenzocycloheptanes and related compounds.
;
_journal_issue                   97
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              13971
_journal_page_last               13974
_journal_paper_doi               10.1039/c6cc07727g
_journal_volume                  52
_journal_year                    2016
_chemical_formula_sum            'C28 H26 O4'
_chemical_formula_weight         426.49
_space_group_IT_number           13
_space_group_name_Hall           '-P 2yc'
_space_group_name_H-M_alt        'P 1 2/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'P 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2016-08-09 deposited with the CCDC.
2016-11-15 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 89.984(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   31.220(4)
_cell_length_b                   10.5893(12)
_cell_length_c                   13.5925(15)
_cell_measurement_reflns_used    82914
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      21.98
_cell_measurement_theta_min      2.33
_cell_volume                     4493.7(9)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker APEX II area-detector diffractometer'
_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  0.0842
_diffrn_reflns_av_sigmaI/netI    0.0370
_diffrn_reflns_limit_h_max       37
_diffrn_reflns_limit_h_min       -37
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            82914
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.30
_exptl_absorpt_coefficient_mu    0.042
_exptl_crystal_density_diffrn    0.630
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             904
_platon_squeeze_details
;
;
_refine_diff_density_max         0.462
_refine_diff_density_min         -0.605
_refine_diff_density_rms         0.116
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   2.859
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         7873
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      2.859
_refine_ls_R_factor_all          0.1945
_refine_ls_R_factor_gt           0.1764
_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^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.4273
_refine_ls_wR_factor_ref         0.4324
_reflns_number_gt                5809
_reflns_number_total             7873
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6cc07727g2.cif
_cod_data_source_block           a
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/RSC/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_cell_volume        4493.6(9)
_cod_original_sg_symbol_H-M      P2/c
_cod_database_code               7125223