Step-Economical Photoassisted Diversity-Oriented Synthesis: Sustaining Cascade Photoreactions in Oxalyl Anilides to Access Complex Polyheterocyclic Molecular Architectures.
Kuznetsov, Dmitry M.; Kutateladze, Andrei G.; Journal of the American Chemical Society 139 (2017) 16584–16590; doi:10.1021/jacs.7b07598

data_4131620
_publ_section_title
;
 Step-Economical Photoassisted Diversity-Oriented Synthesis: Sustaining
 Cascade Photoreactions in Oxalyl Anilides to Access Complex
 Polyheterocyclic Molecular Architectures.
;
_journal_issue                   46
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              16584
_journal_page_last               16590
_journal_paper_doi               10.1021/jacs.7b07598
_journal_volume                  139
_journal_year                    2017
_chemical_formula_moiety         'C22 H16 N4 O2'
_chemical_formula_sum            'C22 H16 N4 O2'
_chemical_formula_weight         368.39
_chemical_name_common            Postphoto_azaindoline
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_cell_angle_alpha                90.00(3)
_cell_angle_beta                 102.40(3)
_cell_angle_gamma                90.00(3)
_cell_formula_units_Z            2
_cell_length_a                   13.738(3)
_cell_length_b                   7.521(2)
_cell_length_c                   8.434(2)
_cell_measurement_reflns_used    9541
_cell_measurement_temperature    296.(2)
_cell_measurement_theta_max      26.4920
_cell_measurement_theta_min      2.4788
_cell_volume                     851.1(4)
_computing_cell_refinement       'SAINT V8.37A (Bruker AXS Inc., 2015)'
_computing_data_collection       'Bruker Instrument Service v2016.11.0.2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'shelXle (C.B. Huebschle, rev 807)'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'XT, VERSION 2014/5'
_diffrn_ambient_temperature      296.(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker D8 APEX II Diffractometer'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0448
_diffrn_reflns_av_unetI/netI     0.0162
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            91487
_diffrn_reflns_theta_full        23.23
_diffrn_reflns_theta_max         23.23
_diffrn_reflns_theta_min         1.52
_diffrn_source                   'sealed tube'
_diffrn_source_type              'Siemens KFFMO2K-90'
_exptl_absorpt_coefficient_mu    0.096
_exptl_absorpt_correction_T_max  0.99
_exptl_absorpt_correction_T_min  0.85
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Krause, L.; Herbst-Irmer, R.; Sheldrick, G. M.; Stalke, D. (2015). J. Appl.
Cryst. 48, 3-10.
;
_exptl_crystal_colour            'clear colourless'
_exptl_crystal_density_diffrn    1.438
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             384
_exptl_crystal_size_max          0.650
_exptl_crystal_size_mid          0.160
_exptl_crystal_size_min          0.060
_refine_diff_density_max         0.558
_refine_diff_density_min         -0.546
_refine_ls_abs_structure_details
;

Flack x determined using 1000 quotients [(I+)-(I-)]/[(I+)+(I-)]
(Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.5(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.399
_refine_ls_matrix_type           full
_refine_ls_number_parameters     254
_refine_ls_number_reflns         2438
_refine_ls_number_restraints     274
_refine_ls_restrained_S_all      1.338
_refine_ls_R_factor_all          0.0941
_refine_ls_R_factor_gt           0.0918
_refine_ls_shift/su_max          0.030
_refine_ls_shift/su_mean         0.005
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+7.2471P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2629
_refine_ls_wR_factor_ref         0.2635
_reflns_number_gt                2351
_reflns_number_total             2438
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja7b07598_si_008.cif
_cod_data_source_block           dmk36805
_cod_database_code               4131620
_shelx_res_checksum              54428
_shelx_hkl_checksum              13227