Synthesis of Functionalized Polycyclic Aromatic Compounds via a Formal [2 + 2]-Cycloaddition.
Nagamoto, Yuuki; Yamaoka, Yousuke; Fujimura, Shun; Takemoto, Yoshiji; Takasu, Kiyosei; Organic letters 16 (2014) 1008–1011; doi:10.1021/ol403757e

data_1513480
_publ_section_title
;
 Synthesis of Functionalized Polycyclic Aromatic Compounds via a Formal [2
 + 2]-Cycloaddition.
;
_journal_issue                   3
_journal_name_full               'Organic letters'
_journal_page_first              1008
_journal_page_last               1011
_journal_paper_doi               10.1021/ol403757e
_journal_volume                  16
_journal_year                    2014
_chemical_formula_moiety         'C30 H30 O2'
_chemical_formula_sum            'C30 H30 O2'
_chemical_formula_weight         422.57
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_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
_cell_angle_alpha                87.138(4)
_cell_angle_beta                 81.679(4)
_cell_angle_gamma                80.307(4)
_cell_formula_units_Z            2
_cell_length_a                   4.8479(7)
_cell_length_b                   14.348(3)
_cell_length_c                   16.644(3)
_cell_measurement_reflns_used    4177
_cell_measurement_temperature    296
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      3.75
_cell_volume                     1128.8(4)
_computing_cell_refinement       'RAPID AUTO'
_computing_data_collection       'RAPID AUTO (Rigaku, ????)'
_computing_data_reduction        'RAPID AUTO'
_computing_molecular_graphics    'CrystalStructure 4.0'
_computing_publication_material  'CrystalStructure 4.0 (Rigaku, 2010)'
_computing_structure_refinement  'CRYSTALS (Carruthers, et al., 1999)'
_computing_structure_solution    'Il Milione (Burla, et al., 2007)'
_diffrn_ambient_temperature      296
_diffrn_detector_area_resol_mean 10.000
_diffrn_measured_fraction_theta_full 0.908
_diffrn_measured_fraction_theta_max 0.908
_diffrn_measurement_device_type  'Rigaku R-AXIS RAPID'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.2715
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            9520
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.48
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.076
_exptl_absorpt_correction_T_max  0.992
_exptl_absorpt_correction_T_min  1.000
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSCOR (Rigaku, 1995)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.243
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             452.00
_exptl_crystal_size_max          0.500
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.100
_refine_diff_density_max         1.910
_refine_diff_density_min         -1.440
_refine_ls_extinction_coef       1389(212)
_refine_ls_extinction_method
'Larson (1970) Crystallographic Computing eq. 22'
_refine_ls_goodness_of_fit_ref   1.001
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     320
_refine_ls_number_reflns         4727
_refine_ls_R_factor_gt           0.1835
_refine_ls_shift/su_max          0.185
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details     'w = 1/[0.0042Fo^2^ + 1.0000\s(Fo^2^)]'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.2702
_reflns_number_gt                839
_reflns_number_total             4727
_reflns_threshold_expression     F>2.0\s(F)
_cod_data_source_file            ol403757e_si_005.cif
_cod_data_source_block           nagamoto1030
_cod_original_cell_volume        1128.8(3)
_cod_database_code               1513480