Photocatalyst-Free Singlet Oxygen-Induced Oxygenation: A Strategy for the Preparation of 5-Cyano-2-Pyridones Driven by Blue-Light Irradiation.
Zhang, Mengmeng; Lan, Hanyang; Li, Nan; Zhong, Qidi; Zhu, Hao; Liu, Chunyan; Zhao, Hong-Wu; The Journal of organic chemistry  (2020) –; doi:10.1021/acs.joc.0c00963

data_4038455
_publ_section_title
;
 Photocatalyst-Free Singlet Oxygen-Induced Oxygenation: A Strategy for the
 Preparation of 5-Cyano-2-Pyridones Driven by Blue-Light Irradiation.
;
_journal_name_full               'The Journal of organic chemistry'
_journal_paper_doi               10.1021/acs.joc.0c00963
_journal_year                    2020
_chemical_formula_moiety         'C40 H38 N2 O2, 0.5(C3 H6 O)'
_chemical_formula_sum            'C41.5 H41 N2 O2.5'
_chemical_formula_weight         607.76
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2019-04-10
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
????
;
_cell_angle_alpha                90
_cell_angle_beta                 112.216(6)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   21.705(8)
_cell_length_b                   18.455(6)
_cell_length_c                   17.774(7)
_cell_measurement_reflns_used    17306
_cell_measurement_temperature    128.15
_cell_measurement_theta_max      27.9263
_cell_measurement_theta_min      1.4982
_cell_volume                     6591(4)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_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      128.15
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device
;
Saturn70 (4x4 bin mode)
;
_diffrn_measurement_device_details
;
AFC10: Fixed Chi 2 circle
;
_diffrn_measurement_device_type  'Rigaku Saturn 70'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_detector       CCD
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0753
_diffrn_reflns_av_unetI/netI     0.0548
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            78677
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.927
_diffrn_reflns_theta_min         1.013
_diffrn_source                   'Rotating Anode'
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.076
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.9272
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrystalClear(Rigaku, 2008)'
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.225
_exptl_crystal_description       prism
_exptl_crystal_F_000             2592
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.404
_refine_diff_density_min         -0.310
_refine_diff_density_rms         0.044
_refine_ls_extinction_coef       0.0055(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_goodness_of_fit_ref   1.138
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     836
_refine_ls_number_reflns         15706
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.138
_refine_ls_R_factor_all          0.0907
_refine_ls_R_factor_gt           0.0647
_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^)+(0.0621P)^2^+0.5955P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1375
_refine_ls_wR_factor_ref         0.1531
_reflns_Friedel_coverage         0.000
_reflns_number_gt                11898
_reflns_number_total             15706
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo0c00963_si_003.cif
_cod_data_source_block           r20190409e
_cod_original_formula_sum        'C41.50 H41 N2 O2.50'
_cod_database_code               4038455
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.985
_shelx_estimated_absorpt_t_min   0.973
_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 Ternary CH refined with riding coordinates:
 C1(H1), C3(H3), C4(H4), C5(H5), C6(H6), C8(H8), C9(H9), C10(H10), C41(H41),
 C43(H43), C44(H44), C45(H45), C47(H47), C48(H48), C49(H49), C50(H50)
2.b Secondary CH2 refined with riding coordinates:
 C27(H27A,H27B), C34(H34A,H34B), C67(H67A,H67B), C74(H74A,H74B)
2.c Aromatic/amide H refined with riding coordinates:
 C16(H16), C17(H17), C18(H18), C19(H19), C20(H20), C22(H22), C23(H23),
 C24(H24), C25(H25), C26(H26), C29(H29), C30(H30), C31(H31), C32(H32), C33(H33),
  C36(H36), C37(H37), C38(H38), C39(H39), C40(H40), C56(H56), C57(H57),
 C58(H58), C59(H59), C60(H60), C62(H62), C63(H63), C64(H64), C65(H65), C66(H66),
  C69(H69), C70(H70), C71(H71), C72(H72), C73(H73), C76(H76), C77(H77),
 C78(H78), C79(H79), C80(H80)
2.d Idealised Me refined as rotating group:
 C12(H12A,H12B,H12C), C14(H14A,H14B,H14C), C52(H52A,H52B,H52C), C54(H54A,H54B,
 H54C), C81(H81A,H81B,H81C), C83(H83A,H83B,H83C)
;
_shelx_res_checksum              44151
_shelx_hkl_checksum              15894
_olex2_submission_special_instructions 'No special instructions were received'