Photoredox-catalyzed regio- & stereoselective C(sp2)–H cyanoalkylation of enamides with cycloketone oximes via selective C–C bond cleavage/radical addition cascade
Guan, Ting; Guo, Jing-Yu; Zhang, Qing-Hong; Xu, Xin-Wen; Yu, Xiao-Yu; Zhang, Yu; Zhao, Kai; Green Chemistry 24 (2022) 6524–6530; doi:10.1039/D2GC01978G

data_7245271
_publ_section_title
;
 Photoredox-catalyzed regio- &amp; stereoselective C(sp2)--H
 cyanoalkylation of enamides with cycloketone oximes via selective C--C
 bond cleavage/radical addition cascade
;
_journal_issue                   17
_journal_name_full               'Green Chemistry'
_journal_page_first              6524
_journal_page_last               6530
_journal_paper_doi               10.1039/D2GC01978G
_journal_volume                  24
_journal_year                    2022
_chemical_formula_moiety         'C22 H24 N2 O2'
_chemical_formula_sum            'C22 H24 N2 O2'
_chemical_formula_weight         348.43
_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             2021-01-15
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2021-03-05 deposited with the CCDC.	2022-08-01 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 107.2710(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   14.6248(3)
_cell_length_b                   11.8590(2)
_cell_length_c                   11.3672(2)
_cell_measurement_reflns_used    9946
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      54.985
_cell_measurement_theta_min      2.753
_cell_volume                     1882.58(6)
_computing_cell_refinement       'SAINT v8.37A (Bruker, 2015)'
_computing_data_reduction        'SAINT v8.37A (Bruker, 2015)'
_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      193.0
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           GaK\a
_diffrn_radiation_wavelength     1.34139
_diffrn_reflns_av_R_equivalents  0.0600
_diffrn_reflns_av_unetI/netI     0.0401
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            19598
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        53.594
_diffrn_reflns_theta_max         54.963
_diffrn_reflns_theta_min         2.753
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.403
_exptl_absorpt_correction_T_max  0.7508
_exptl_absorpt_correction_T_min  0.4551
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.2000 before and 0.0797 after correction. The Ratio of minimum to maximum transmission is 0.6062. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.229
_exptl_crystal_description       block
_exptl_crystal_F_000             744
_exptl_crystal_size_max          0.09
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.163
_refine_diff_density_min         -0.189
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     237
_refine_ls_number_reflns         3557
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0508
_refine_ls_R_factor_gt           0.0411
_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^)+(0.0502P)^2^+0.3821P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1011
_refine_ls_wR_factor_ref         0.1089
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3006
_reflns_number_total             3557
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2gc01978g2.cif
_cod_data_source_block           210115sf
_cod_depositor_comments          'Adding full bibliography for 7245271.cif.'
_cod_database_code               7245271
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.980
_shelx_estimated_absorpt_t_min   0.965
_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:
 C3(H3A,H3B), C4(H4A,H4B), C5(H5A,H5B), C16(H16A,H16B)
2.b Aromatic/amide H refined with riding coordinates:
 C2(H2), C10(H10), C11(H11), C13(H13), C14(H14), C18(H18), C19(H19), C20(H20),
 C21(H21), C22(H22)
2.c Idealised Me refined as rotating group:
 C8(H8A,H8B,H8C), C15(H15A,H15B,H15C)
;
_shelx_res_checksum              93066
_olex2_submission_special_instructions 'No special instructions were received'