Construction of Fused Polyheterocycles through Sequential [4 + 2] and [3 + 2] Cycloadditions.
Feng, Yadong; Tian, Nian; Li, Yudong; Jia, Chunqi; Li, Xuening; Wang, Lianhui; Cui, Xiuling; Organic letters 19 (2017) 1658–1661; doi:10.1021/acs.orglett.7b00452

data_1556025
_publ_section_title
;
 Construction of Fused Polyheterocycles through Sequential [4 + 2] and [3
 + 2] Cycloadditions.
;
_journal_issue                   7
_journal_name_full               'Organic letters'
_journal_page_first              1658
_journal_page_last               1661
_journal_paper_doi               10.1021/acs.orglett.7b00452
_journal_volume                  19
_journal_year                    2017
_chemical_formula_moiety         'C42 H28 N2 O2'
_chemical_formula_sum            'C42 H28 N2 O2'
_chemical_formula_weight         592.66
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2015-12-28
_audit_creation_method
;
Olex2 1.2
(compiled 2015.09.30 svn.r3233 for OlexSys, GUI svn.r5103)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   18.5446(10)
_cell_length_b                   17.7946(9)
_cell_length_c                   18.9442(10)
_cell_measurement_reflns_used    3439
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.5810
_cell_measurement_theta_min      3.8410
_cell_volume                     6251.5(6)
_computing_cell_refinement       'CrysAlisPro 1.171.38.41k (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.41k (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.41k (Rigaku OD, 2015)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 16.2312
_diffrn_detector_type            Eos
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
--------------------------------------------------------------------------
  1  \w    -13.00  16.00   0.50    8.50    --  -14.74 -99.00  90.00   58
  2  \w     -8.00  24.00   0.50    8.50    --  -14.74 -99.00 -30.00   64
  3  \w    -31.00   8.00   0.50    8.50    --  -14.74  57.00-180.00   78
  4  \w    -82.00 -14.00   0.50    8.50    --  -14.74 -77.00-150.00  136
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Xcalibur, Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0277680000
_diffrn_orient_matrix_UB_12      0.0140638000
_diffrn_orient_matrix_UB_13      -0.0221792000
_diffrn_orient_matrix_UB_21      -0.0254433000
_diffrn_orient_matrix_UB_22      -0.0053140000
_diffrn_orient_matrix_UB_23      0.0276099000
_diffrn_orient_matrix_UB_31      0.0070085000
_diffrn_orient_matrix_UB_32      0.0369495000
_diffrn_orient_matrix_UB_33      0.0123420000
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0555
_diffrn_reflns_av_unetI/netI     0.0523
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            20378
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         26.371
_diffrn_reflns_theta_min         2.150
_diffrn_source                   'fine-focus sealed X-ray tube'
_diffrn_source_type              'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.82555
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.41k (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.259
_exptl_crystal_description       block
_exptl_crystal_F_000             2480
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.208
_refine_diff_density_min         -0.212
_refine_diff_density_rms         0.050
_refine_ls_extinction_coef       0.0026(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     416
_refine_ls_number_reflns         6381
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0851
_refine_ls_R_factor_gt           0.0537
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0485P)^2^+1.0924P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1133
_refine_ls_wR_factor_ref         0.1301
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4435
_reflns_number_total             6381
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ol7b00452_si_002.cif
_cod_data_source_block           201512174
_cod_database_code               1556025
_chemical_oxdiff_formula         C20H20N4o2
_reflns_odcompleteness_completeness 99.53
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     26.32
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2), C3(H3), C4(H4), C10(H10), C11(H11), C12(H12), C13(H13),
 C20(H20), C21(H21), C22(H22), C23(H23), C24(H24), C26(H26), C27(H27), C28(H28),
  C29(H29), C30(H30), C32(H32), C33(H33), C34(H34), C35(H35), C36(H36),
 C38(H38), C39(H39), C40(H40), C41(H41), C42(H42)
;
_shelx_res_checksum              86879
_shelx_hkl_checksum              31738
_shelx_shelxl_version_number     2014/7
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.122
_oxdiff_exptl_absorpt_empirical_full_min 0.838