An unconventional photochemical amide synthesis from excited-state nitroarenes
Wang, Zengping; Zhai, Xiaofang; Bai, Pengtao; Fang, Li; Zheng, Shaojun; Zhao, Jiajia; Yang, Fu; Xu, Chen; Song, Heng; Green Chemistry 27 (2025) 13427–13435; doi:10.1039/D5GC03649F

data_7250921
_publ_section_title
;
 An unconventional photochemical amide synthesis from excited-state
 nitroarenes
;
_journal_issue                   42
_journal_name_full               'Green Chemistry'
_journal_page_first              13427
_journal_page_last               13435
_journal_paper_doi               10.1039/D5GC03649F
_journal_volume                  27
_journal_year                    2025
_chemical_formula_moiety         'C10 H11 N O2'
_chemical_formula_sum            'C10 H11 N O2'
_chemical_formula_weight         177.20
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2023-12-11
_audit_creation_method
;
Olex2 1.5
(compiled 2022.04.07 svn.rca3783a0 for OlexSys, GUI svn.r6498)
;
_audit_update_record
;
2025-04-22 deposited with the CCDC.	2025-09-26 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 92.34(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.314(6)
_cell_length_b                   12.846(9)
_cell_length_c                   10.041(8)
_cell_measurement_reflns_used    810
_cell_measurement_temperature    296.15
_cell_measurement_theta_max      19.233
_cell_measurement_theta_min      3.380
_cell_volume                     942.6(13)
_computing_cell_refinement       'SAINT V8.40B (?, 2016)'
_computing_data_collection       'Bruker D8 Venture diffractometer'
_computing_data_reduction        'SAINT V8.40B (?, 2016)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2019/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      296.15
_diffrn_detector                 'CCD area detector'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CCD area detector'
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0629
_diffrn_reflns_av_unetI/netI     0.0791
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            4153
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        24.992
_diffrn_reflns_theta_max         24.992
_diffrn_reflns_theta_min         3.172
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_current           30.0
_diffrn_source_power             1.35
_diffrn_source_target            Mo
_diffrn_source_voltage           45.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6001
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.0671 before and 0.0491 after correction.
The Ratio of minimum to maximum transmission is 0.8049.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.249
_exptl_crystal_description       block
_exptl_crystal_F_000             376
_exptl_crystal_recrystallization_method
'The crystals were growth by means of evaporation of a mixture of n-hexane and toluene at RT.'
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.239
_refine_diff_density_min         -0.162
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.013
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     120
_refine_ls_number_reflns         1655
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.013
_refine_ls_R_factor_all          0.1526
_refine_ls_R_factor_gt           0.0625
_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^)+(0.0916P)^2^+0.0308P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1474
_refine_ls_wR_factor_ref         0.2066
_reflns_Friedel_coverage         0.000
_reflns_number_gt                783
_reflns_number_total             1655
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5gc03649f2.cif
_cod_data_source_block           w_no
_cod_depositor_comments
'Adding full bibliography for 7250918--7250924.cif.'
_cod_original_cell_volume        942.7(12)
_cod_database_code               7250921
_shelx_shelxl_version_number     2019/3
_shelx_estimated_absorpt_t_max   0.990
_shelx_estimated_absorpt_t_min   0.987
_exptl_crystal_mounting_method
'Crystals were removed from the crystallisation vial and immediately coated with polybutenes oil (CAS: 9003-29-6) on a glass slide. A suitable single crystal coated with polybutenes oil as less as possible was sealed in capillary tube filled with argon. The capillary tube with single crystal was mounted on copper pin with solid paraffin.'
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups, All N(H) groups
 At 1.5 times of:
  All C(H,H,H) groups, All O(H) groups
2.a Aromatic/amide H refined with riding coordinates:
 N1(H1A), C6(H6), C5(H5), C3(H3), C4(H4)
2.b X=CH2 refined with riding coordinates:
 C9(H9A,H9B)
2.c Idealised Me refined as rotating group:
 C10(H10A,H10B,H10C)
2.d Idealised tetrahedral OH refined as rotating group:
 O1(H1)
;
_shelx_res_checksum              22301
_olex2_submission_special_instructions 'No special instructions were received'