Regio- and stereoselective C(sp2)–H acylation of enamides with aldehydes via transition-metal-free photoredox catalysis
Zhao, Kai; Zhang, Xiao-Chen; Tao, Ji-Yu; Wu, Xian-Dan; Wu, Jia-Xu; Li, Wei-Ming; Zhu, Tong-Hao; Loh, Teck-Peng; Green Chemistry 22 (2020) 5497–5503; doi:10.1039/D0GC01947J

data_7240916
_publ_section_title
;
 Regio- and stereoselective C(sp2)--H acylation of enamides with aldehydes
 via transition-metal-free photoredox catalysis
;
_journal_issue                   16
_journal_name_full               'Green Chemistry'
_journal_page_first              5497
_journal_page_last               5503
_journal_paper_doi               10.1039/D0GC01947J
_journal_volume                  22
_journal_year                    2020
_chemical_formula_moiety         'C24 H21 N O2'
_chemical_formula_sum            'C24 H21 N O2'
_chemical_formula_weight         355.42
_chemical_melting_point          394.8(4)
_chemical_name_systematic
(E)-N-benzyl-N-(3-oxo-1,3-diphenylprop-1-en-1-yl)acetamide
_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             2019-05-23
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2019-11-06 deposited with the CCDC.	2020-07-13 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 94.1240(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.1551(2)
_cell_length_b                   11.3650(2)
_cell_length_c                   18.1448(4)
_cell_measurement_reflns_used    9926
_cell_measurement_temperature    124(2)
_cell_measurement_theta_max      54.82
_cell_measurement_theta_min      3.385
_cell_volume                     1883.04(7)
_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      124.58
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0459
_diffrn_reflns_av_unetI/netI     0.0312
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            21460
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        53.594
_diffrn_reflns_theta_max         54.950
_diffrn_reflns_theta_min         3.996
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.403
_exptl_absorpt_correction_T_max  0.7508
_exptl_absorpt_correction_T_min  0.5803
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.1207 before and 0.0605 after correction. The Ratio of minimum to maximum transmission is 0.7729. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.254
_exptl_crystal_description       block
_exptl_crystal_F_000             752
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: Ethyl acetate and Hexane'
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.153
_refine_diff_density_min         -0.235
_refine_diff_density_rms         0.042
_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     245
_refine_ls_number_reflns         3569
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0497
_refine_ls_R_factor_gt           0.0385
_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^)+(0.0404P)^2^+0.5245P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0890
_refine_ls_wR_factor_ref         0.0961
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2979
_reflns_number_total             3569
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0gc01947j2.cif
_cod_data_source_block           190523sf_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_chemical_melting_point' value '394.36 - 395.16' was
changed to '394.8(4)' -- the average value was taken and precision
was estimated.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 

 Adding full bibliography for 7240916--7240920.cif.

 Adding full bibliography for 7240916--7240920.cif.
;
_cod_database_code               7240916
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.976
_shelx_estimated_absorpt_t_min   0.953
_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:
 C18(H18A,H18B)
2.b Aromatic/amide H refined with riding coordinates:
 C4(H4), C7(H7), C8(H8), C9(H9), C10(H10), C11(H11), C13(H13), C14(H14),
 C15(H15), C16(H16), C17(H17), C20(H20), C21(H21), C22(H22), C23(H23), C24(H24)
2.c Idealised Me refined as rotating group:
 C2(H2A,H2B,H2C)
;
_shelx_res_checksum              17809
_olex2_submission_special_instructions 'No special instructions were received'