Visible light-promoted synthesis of 4,6a-dihydropyrrolo[3,4-c]pyrrole-1,3(2H,3aH)-diones via [3+2] cycloaddition reaction of 2H-azirines with maleimides
Guo, Hao; Wang, Huahao; Zhao, Hongyi; Zhang, Dongfeng; New Journal of Chemistry 47 (2023) 5634–5638; doi:10.1039/D2NJ06257G

data_7062384
_publ_section_title
;
 Visible light-promoted synthesis of
 4,6a-dihydropyrrolo[3,4-c]pyrrole-1,3(2H,3aH)-diones via [3+2]
 cycloaddition reaction of 2H-azirines with maleimides
;
_journal_issue                   12
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              5634
_journal_page_last               5638
_journal_paper_doi               10.1039/D2NJ06257G
_journal_volume                  47
_journal_year                    2023
_chemical_formula_moiety         'C19 H16 N2 O2'
_chemical_formula_sum            'C19 H16 N2 O2'
_chemical_formula_weight         304.34
_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
_atom_sites_solution_primary     dual
_audit_creation_date             2022-07-13
_audit_creation_method
;
Olex2 1.5
(compiled 2022.04.07 svn.rca3783a0 for OlexSys, GUI svn.r6498)
;
_audit_update_record
;
2022-11-30 deposited with the CCDC.	2023-02-06 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   17.6247(4)
_cell_length_b                   7.6878(2)
_cell_length_c                   22.1932(6)
_cell_measurement_reflns_used    12395
_cell_measurement_temperature    170.00(10)
_cell_measurement_theta_max      30.6870
_cell_measurement_theta_min      1.8020
_cell_volume                     3007.07(13)
_computing_cell_refinement       'CrysAlisPro 1.171.39.45i (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.39.45i (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.39.45i (Rigaku OD, 2018)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      170.00(10)
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.892
_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    -72.00  46.00   0.50    3.00    --  -14.80  45.00  -4.87  236
  2  \w     21.00  46.00   0.50    3.00    --  -14.80  45.00  -4.87   50
  3  \w    -18.00  74.00   0.50    3.00    --  -14.80  45.00  60.00  184
  4  \w   -104.00   1.00   0.50    3.00    --  -14.80  45.00  30.00  210
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB AFC10 (RCD3): fixed-chi single'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0350738000
_diffrn_orient_matrix_UB_12      0.0448104000
_diffrn_orient_matrix_UB_13      0.0026110000
_diffrn_orient_matrix_UB_21      0.0170251000
_diffrn_orient_matrix_UB_22      0.0604236000
_diffrn_orient_matrix_UB_23      0.0200152000
_diffrn_orient_matrix_UB_31      0.0099600000
_diffrn_orient_matrix_UB_32      0.0532964000
_diffrn_orient_matrix_UB_33      -0.0248168000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0185
_diffrn_reflns_av_unetI/netI     0.0144
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.892
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            24644
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.892
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.739
_diffrn_reflns_theta_min         1.835
_diffrn_source                   'Rotating-anode X-ray tube'
_diffrn_source_type              'Rigaku (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.089
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.79395
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.45i (Rigaku Oxford Diffraction, 2018)
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    1.344
_exptl_crystal_description       block
_exptl_crystal_F_000             1280
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.330
_refine_diff_density_min         -0.193
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.067
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     209
_refine_ls_number_reflns         4173
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.067
_refine_ls_R_factor_all          0.0438
_refine_ls_R_factor_gt           0.0393
_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^)+(0.0665P)^2^+0.6758P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1117
_refine_ls_wR_factor_ref         0.1147
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3683
_reflns_number_total             4173
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2nj06257g2.cif
_cod_data_source_block           mx10528
_cod_database_code               7062384
_shelx_shelxl_version_number     2018/3
_chemical_oxdiff_formula         CHNO
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C2(H2), C4(H4), C5(H5)
2.b Aromatic/amide H refined with riding coordinates:
 C9(H9), C10(H10), C11(H11), C12(H12), C13(H13), C15(H15), C16(H16), C17(H17),
 C18(H18), C19(H19)
2.c Idealised Me refined as rotating group:
 C7(H7A,H7B,H7C)
;
_shelx_res_checksum              42464
_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 1.215
_oxdiff_exptl_absorpt_empirical_full_min 0.711