Ruthenium(II)-catalyzed C-H activation of chromones with maleimides to synthesize succinimide/ maleimide-containing chromones.
Zhou, Yan; Liang, Hong; Sheng, Yaoguang; Wang, Shaoli; Gao, Yi; Zhan, Lingling; Zheng, Zhilong; Yang, Mengjie; Liang, Guang; Zhou, Jianmin; Deng, Jun; Song, Zengqiang; The Journal of organic chemistry  (2020) –; doi:10.1021/acs.joc.0c01223

data_4038553
_publ_section_title
;
 Ruthenium(II)-catalyzed C-H activation of chromones with maleimides to
 synthesize succinimide/ maleimide-containing chromones.
;
_journal_name_full               'The Journal of organic chemistry'
_journal_paper_doi               10.1021/acs.joc.0c01223
_journal_year                    2020
_chemical_formula_moiety         'C15 H11 N O4'
_chemical_formula_sum            'C15 H11 N O4'
_chemical_formula_weight         269.25
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2019-01-18
_audit_creation_method
;
Olex2 1.2-alpha
(compiled 2018.07.26 svn.r3523 for OlexSys, GUI svn.r5532)
;
_cell_angle_alpha                76.190(4)
_cell_angle_beta                 70.082(4)
_cell_angle_gamma                67.095(4)
_cell_formula_units_Z            4
_cell_length_a                   10.8933(5)
_cell_length_b                   11.5767(5)
_cell_length_c                   11.8325(6)
_cell_measurement_reflns_used    3854
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.9170
_cell_measurement_theta_min      3.6750
_cell_volume                     1282.56(11)
_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    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 10.6296
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.818
_diffrn_measurement_device_type  'SuperNova, Single source at offset/far, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0192
_diffrn_reflns_av_unetI/netI     0.0407
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.818
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            10265
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.818
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.771
_diffrn_reflns_theta_min         3.303
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    0.103
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.99002
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.46 (Rigaku Oxford Diffraction, 2018)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.394
_exptl_crystal_description       block
_exptl_crystal_F_000             560
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.28
_refine_diff_density_max         0.202
_refine_diff_density_min         -0.290
_refine_diff_density_rms         0.065
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     363
_refine_ls_number_reflns         6001
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0894
_refine_ls_R_factor_gt           0.0583
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0576P)^2^+0.2828P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1274
_refine_ls_wR_factor_ref         0.1505
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4048
_reflns_number_total             6001
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo0c01223_si_002.cif
_cod_data_source_block           20190117-songzq-zy-209-1
_cod_original_cell_volume        1282.56(12)
_cod_database_code               4038553
_shelx_shelxl_version_number     2014/7
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C2(H2A,H2B), C17(H17A,H17B)
2.b Aromatic/amide H refined with riding coordinates:
 C19(H19), C4(H4), C23(H23), C25(H25), C29(H29), C24(H24), C28(H28), C14(H14),
 C8(H8), C10(H10), C13(H13), C9(H9)
2.c Idealised Me refined as rotating group:
 C1(H1A,H1B,H1C), C16(H16A,H16B,H16C)
;
_olex2_submission_special_instructions 'No special instructions were received'